Home / 160,686,103.85-221,749,252.96-90,137,352.68

Finding the Fourth Proportional to 160,686,103.85, 221,749,252.96 and 90,137,352.68

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Solution

The fourth proportional to 160,686,103.85, 221,749,252.96 and 90,137,352.68 is: 124,390,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,686,103.85 : 221,749,252.96 = 90,137,352.68 : x
  2. Step 2: Convert to fraction form
    160,686,103.85/221,749,252.96 = 90,137,352.68/x
  3. Step 3: Cross multiply
    160,686,103.85x = 221,749,252.96 × 90,137,352.68
  4. Step 4: Simplify right side
    160,686,103.85x = 19,987,890,620,582,056
  5. Step 5: Solve for x
    x = 19,987,890,620,582,056/160,686,103.85
  6. Step 6: Final answer
    x = 124,390,909.62

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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.