Home / 124,905.02-172,373.05-68,316.39

Finding the Fourth Proportional to 124,905.02, 172,373.05 and 68,316.39

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Solution

The fourth proportional to 124,905.02, 172,373.05 and 68,316.39 is: 94,278.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,905.02 : 172,373.05 = 68,316.39 : x
  2. Step 2: Convert to fraction form
    124,905.02/172,373.05 = 68,316.39/x
  3. Step 3: Cross multiply
    124,905.02x = 172,373.05 × 68,316.39
  4. Step 4: Simplify right side
    124,905.02x = 11,775,904,167.71
  5. Step 5: Solve for x
    x = 11,775,904,167.71/124,905.02
  6. Step 6: Final answer
    x = 94,278.87

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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.