Home / 131,538,781.02-181,523,906.20-72,805,525.50

Finding the Fourth Proportional to 131,538,781.02, 181,523,906.20 and 72,805,525.50

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Solution

The fourth proportional to 131,538,781.02, 181,523,906.20 and 72,805,525.50 is: 100,471,840.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,538,781.02 : 181,523,906.20 = 72,805,525.50 : x
  2. Step 2: Convert to fraction form
    131,538,781.02/181,523,906.20 = 72,805,525.50/x
  3. Step 3: Cross multiply
    131,538,781.02x = 181,523,906.20 × 72,805,525.50
  4. Step 4: Simplify right side
    131,538,781.02x = 13,215,943,381,703,708
  5. Step 5: Solve for x
    x = 13,215,943,381,703,708/131,538,781.02
  6. Step 6: Final answer
    x = 100,471,840.16

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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.