Home / 160,686,107.86-221,749,258.48-90,137,356.68

Finding the Fourth Proportional to 160,686,107.86, 221,749,258.48 and 90,137,356.68

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Solution

The fourth proportional to 160,686,107.86, 221,749,258.48 and 90,137,356.68 is: 124,390,915.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,686,107.86 : 221,749,258.48 = 90,137,356.68 : x
  2. Step 2: Convert to fraction form
    160,686,107.86/221,749,258.48 = 90,137,356.68/x
  3. Step 3: Cross multiply
    160,686,107.86x = 221,749,258.48 × 90,137,356.68
  4. Step 4: Simplify right side
    160,686,107.86x = 19,987,892,005,137,276
  5. Step 5: Solve for x
    x = 19,987,892,005,137,276/160,686,107.86
  6. Step 6: Final answer
    x = 124,390,915.13

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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.