Home / 172,567.31-238,066.02-100,915.74

Finding the Fourth Proportional to 172,567.31, 238,066.02 and 100,915.74

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Solution

The fourth proportional to 172,567.31, 238,066.02 and 100,915.74 is: 139,218.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,567.31 : 238,066.02 = 100,915.74 : x
  2. Step 2: Convert to fraction form
    172,567.31/238,066.02 = 100,915.74/x
  3. Step 3: Cross multiply
    172,567.31x = 238,066.02 × 100,915.74
  4. Step 4: Simplify right side
    172,567.31x = 24,024,608,577.15
  5. Step 5: Solve for x
    x = 24,024,608,577.15/172,567.31
  6. Step 6: Final answer
    x = 139,218.77

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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.