Home / 143,895.04-215,842.80-38,711.20

Finding the Fourth Proportional to 143,895.04, 215,842.80 and 38,711.20

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Solution

The fourth proportional to 143,895.04, 215,842.80 and 38,711.20 is: 58,066.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,895.04 : 215,842.80 = 38,711.20 : x
  2. Step 2: Convert to fraction form
    143,895.04/215,842.80 = 38,711.20/x
  3. Step 3: Cross multiply
    143,895.04x = 215,842.80 × 38,711.20
  4. Step 4: Simplify right side
    143,895.04x = 8,355,533,799.36
  5. Step 5: Solve for x
    x = 8,355,533,799.36/143,895.04
  6. Step 6: Final answer
    x = 58,066.86

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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.