Home / 99,618.90-137,412.66-60,838.53

Finding the Fourth Proportional to 99,618.90, 137,412.66 and 60,838.53

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Solution

The fourth proportional to 99,618.90, 137,412.66 and 60,838.53 is: 83,919.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,618.90 : 137,412.66 = 60,838.53 : x
  2. Step 2: Convert to fraction form
    99,618.90/137,412.66 = 60,838.53/x
  3. Step 3: Cross multiply
    99,618.90x = 137,412.66 × 60,838.53
  4. Step 4: Simplify right side
    99,618.90x = 8,359,984,237.79
  5. Step 5: Solve for x
    x = 8,359,984,237.79/99,618.90
  6. Step 6: Final answer
    x = 83,919.66

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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.