Home / 160,686,098.10-221,749,245.06-90,137,346.93

Finding the Fourth Proportional to 160,686,098.10, 221,749,245.06 and 90,137,346.93

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Solution

The fourth proportional to 160,686,098.10, 221,749,245.06 and 90,137,346.93 is: 124,390,901.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,686,098.10 : 221,749,245.06 = 90,137,346.93 : x
  2. Step 2: Convert to fraction form
    160,686,098.10/221,749,245.06 = 90,137,346.93/x
  3. Step 3: Cross multiply
    160,686,098.10x = 221,749,245.06 × 90,137,346.93
  4. Step 4: Simplify right side
    160,686,098.10x = 19,987,888,633,438,812
  5. Step 5: Solve for x
    x = 19,987,888,633,438,812/160,686,098.10
  6. Step 6: Final answer
    x = 124,390,901.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.