Home / 99,134.69-136,806.23-53,812.76

Finding the Fourth Proportional to 99,134.69, 136,806.23 and 53,812.76

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Solution

The fourth proportional to 99,134.69, 136,806.23 and 53,812.76 is: 74,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,134.69 : 136,806.23 = 53,812.76 : x
  2. Step 2: Convert to fraction form
    99,134.69/136,806.23 = 53,812.76/x
  3. Step 3: Cross multiply
    99,134.69x = 136,806.23 × 53,812.76
  4. Step 4: Simplify right side
    99,134.69x = 7,361,920,272.00
  5. Step 5: Solve for x
    x = 7,361,920,272.00/99,134.69
  6. Step 6: Final answer
    x = 74,261.80

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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.