Home / 142,073.28-212,836.50-88,786.08

Finding the Fourth Proportional to 142,073.28, 212,836.50 and 88,786.08

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Solution

The fourth proportional to 142,073.28, 212,836.50 and 88,786.08 is: 133,008.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,073.28 : 212,836.50 = 88,786.08 : x
  2. Step 2: Convert to fraction form
    142,073.28/212,836.50 = 88,786.08/x
  3. Step 3: Cross multiply
    142,073.28x = 212,836.50 × 88,786.08
  4. Step 4: Simplify right side
    142,073.28x = 18,896,918,515.92
  5. Step 5: Solve for x
    x = 18,896,918,515.92/142,073.28
  6. Step 6: Final answer
    x = 133,008.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.