Home / 156,066.89-215,371.74-84,446.58

Finding the Fourth Proportional to 156,066.89, 215,371.74 and 84,446.58

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Solution

The fourth proportional to 156,066.89, 215,371.74 and 84,446.58 is: 116,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,066.89 : 215,371.74 = 84,446.58 : x
  2. Step 2: Convert to fraction form
    156,066.89/215,371.74 = 84,446.58/x
  3. Step 3: Cross multiply
    156,066.89x = 215,371.74 × 84,446.58
  4. Step 4: Simplify right side
    156,066.89x = 18,187,406,871.65
  5. Step 5: Solve for x
    x = 18,187,406,871.65/156,066.89
  6. Step 6: Final answer
    x = 116,535.98

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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.