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Finding the Fourth Proportional to 125,092.53, 172,603.44 and 71,376.21

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Solution

The fourth proportional to 125,092.53, 172,603.44 and 71,376.21 is: 98,485.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,092.53 : 172,603.44 = 71,376.21 : x
  2. Step 2: Convert to fraction form
    125,092.53/172,603.44 = 71,376.21/x
  3. Step 3: Cross multiply
    125,092.53x = 172,603.44 × 71,376.21
  4. Step 4: Simplify right side
    125,092.53x = 12,319,779,380.16
  5. Step 5: Solve for x
    x = 12,319,779,380.16/125,092.53
  6. Step 6: Final answer
    x = 98,485.33

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1.5x scale

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.