Home / 99,645.19-137,510.36-63,835.20

Finding the Fourth Proportional to 99,645.19, 137,510.36 and 63,835.20

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Solution

The fourth proportional to 99,645.19, 137,510.36 and 63,835.20 is: 88,092.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,645.19 : 137,510.36 = 63,835.20 : x
  2. Step 2: Convert to fraction form
    99,645.19/137,510.36 = 63,835.20/x
  3. Step 3: Cross multiply
    99,645.19x = 137,510.36 × 63,835.20
  4. Step 4: Simplify right side
    99,645.19x = 8,778,001,011.16
  5. Step 5: Solve for x
    x = 8,778,001,011.16/99,645.19
  6. Step 6: Final answer
    x = 88,092.57

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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.