Home / 143,934.30-215,836.65-65,007.90

Finding the Fourth Proportional to 143,934.30, 215,836.65 and 65,007.90

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Solution

The fourth proportional to 143,934.30, 215,836.65 and 65,007.90 is: 97,482.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,934.30 : 215,836.65 = 65,007.90 : x
  2. Step 2: Convert to fraction form
    143,934.30/215,836.65 = 65,007.90/x
  3. Step 3: Cross multiply
    143,934.30x = 215,836.65 × 65,007.90
  4. Step 4: Simplify right side
    143,934.30x = 14,031,087,359.54
  5. Step 5: Solve for x
    x = 14,031,087,359.54/143,934.30
  6. Step 6: Final answer
    x = 97,482.58

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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.