Home / 131,397.06-181,316.02-74,045.71

Finding the Fourth Proportional to 131,397.06, 181,316.02 and 74,045.71

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Solution

The fourth proportional to 131,397.06, 181,316.02 and 74,045.71 is: 102,176.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,397.06 : 181,316.02 = 74,045.71 : x
  2. Step 2: Convert to fraction form
    131,397.06/181,316.02 = 74,045.71/x
  3. Step 3: Cross multiply
    131,397.06x = 181,316.02 × 74,045.71
  4. Step 4: Simplify right side
    131,397.06x = 13,425,673,435.27
  5. Step 5: Solve for x
    x = 13,425,673,435.27/131,397.06
  6. Step 6: Final answer
    x = 102,176.36

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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.