Home / 145,510.12-200,632.20-99,591.91

Finding the Fourth Proportional to 145,510.12, 200,632.20 and 99,591.91

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Solution

The fourth proportional to 145,510.12, 200,632.20 and 99,591.91 is: 137,319.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,510.12 : 200,632.20 = 99,591.91 : x
  2. Step 2: Convert to fraction form
    145,510.12/200,632.20 = 99,591.91/x
  3. Step 3: Cross multiply
    145,510.12x = 200,632.20 × 99,591.91
  4. Step 4: Simplify right side
    145,510.12x = 19,981,344,005.50
  5. Step 5: Solve for x
    x = 19,981,344,005.50/145,510.12
  6. Step 6: Final answer
    x = 137,319.27

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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.