Home / 145,281.29-217,453.19-75,064.01

Finding the Fourth Proportional to 145,281.29, 217,453.19 and 75,064.01

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Solution

The fourth proportional to 145,281.29, 217,453.19 and 75,064.01 is: 112,353.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,281.29 : 217,453.19 = 75,064.01 : x
  2. Step 2: Convert to fraction form
    145,281.29/217,453.19 = 75,064.01/x
  3. Step 3: Cross multiply
    145,281.29x = 217,453.19 × 75,064.01
  4. Step 4: Simplify right side
    145,281.29x = 16,322,906,966.11
  5. Step 5: Solve for x
    x = 16,322,906,966.11/145,281.29
  6. Step 6: Final answer
    x = 112,353.82

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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.