Home / 172,915.08-238,682.34-101,318.28

Finding the Fourth Proportional to 172,915.08, 238,682.34 and 101,318.28

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Solution

The fourth proportional to 172,915.08, 238,682.34 and 101,318.28 is: 139,854.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,915.08 : 238,682.34 = 101,318.28 : x
  2. Step 2: Convert to fraction form
    172,915.08/238,682.34 = 101,318.28/x
  3. Step 3: Cross multiply
    172,915.08x = 238,682.34 × 101,318.28
  4. Step 4: Simplify right side
    172,915.08x = 24,182,884,155.18
  5. Step 5: Solve for x
    x = 24,182,884,155.18/172,915.08
  6. Step 6: Final answer
    x = 139,854.11

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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.