Home / 131,690,920.02-181,720,225.16-72,942,608.60

Finding the Fourth Proportional to 131,690,920.02, 181,720,225.16 and 72,942,608.60

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Solution

The fourth proportional to 131,690,920.02, 181,720,225.16 and 72,942,608.60 is: 100,653,463.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,690,920.02 : 181,720,225.16 = 72,942,608.60 : x
  2. Step 2: Convert to fraction form
    131,690,920.02/181,720,225.16 = 72,942,608.60/x
  3. Step 3: Cross multiply
    131,690,920.02x = 181,720,225.16 × 72,942,608.60
  4. Step 4: Simplify right side
    131,690,920.02x = 13,255,147,258,549,752
  5. Step 5: Solve for x
    x = 13,255,147,258,549,752/131,690,920.02
  6. Step 6: Final answer
    x = 100,653,463.86

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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.