Home / 125,812.65-173,626.23-72,108.03

Finding the Fourth Proportional to 125,812.65, 173,626.23 and 72,108.03

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Solution

The fourth proportional to 125,812.65, 173,626.23 and 72,108.03 is: 99,511.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,812.65 : 173,626.23 = 72,108.03 : x
  2. Step 2: Convert to fraction form
    125,812.65/173,626.23 = 72,108.03/x
  3. Step 3: Cross multiply
    125,812.65x = 173,626.23 × 72,108.03
  4. Step 4: Simplify right side
    125,812.65x = 12,519,845,834.81
  5. Step 5: Solve for x
    x = 12,519,845,834.81/125,812.65
  6. Step 6: Final answer
    x = 99,511.82

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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.