Home / 125,122.74-172,705.59-71,437.02

Finding the Fourth Proportional to 125,122.74, 172,705.59 and 71,437.02

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Solution

The fourth proportional to 125,122.74, 172,705.59 and 71,437.02 is: 98,603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,122.74 : 172,705.59 = 71,437.02 : x
  2. Step 2: Convert to fraction form
    125,122.74/172,705.59 = 71,437.02/x
  3. Step 3: Cross multiply
    125,122.74x = 172,705.59 × 71,437.02
  4. Step 4: Simplify right side
    125,122.74x = 12,337,572,686.94
  5. Step 5: Solve for x
    x = 12,337,572,686.94/125,122.74
  6. Step 6: Final answer
    x = 98,603.76

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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.