Home / 125,840.92-173,664.60-72,136.10

Finding the Fourth Proportional to 125,840.92, 173,664.60 and 72,136.10

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Solution

The fourth proportional to 125,840.92, 173,664.60 and 72,136.10 is: 99,550.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,840.92 : 173,664.60 = 72,136.10 : x
  2. Step 2: Convert to fraction form
    125,840.92/173,664.60 = 72,136.10/x
  3. Step 3: Cross multiply
    125,840.92x = 173,664.60 × 72,136.10
  4. Step 4: Simplify right side
    125,840.92x = 12,527,486,952.06
  5. Step 5: Solve for x
    x = 12,527,486,952.06/125,840.92
  6. Step 6: Final answer
    x = 99,550.19

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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.