Home / 105,654.38-158,444.91-42,455.75

Finding the Fourth Proportional to 105,654.38, 158,444.91 and 42,455.75

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Solution

The fourth proportional to 105,654.38, 158,444.91 and 42,455.75 is: 63,668.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,654.38 : 158,444.91 = 42,455.75 : x
  2. Step 2: Convert to fraction form
    105,654.38/158,444.91 = 42,455.75/x
  3. Step 3: Cross multiply
    105,654.38x = 158,444.91 × 42,455.75
  4. Step 4: Simplify right side
    105,654.38x = 6,726,896,695.51
  5. Step 5: Solve for x
    x = 6,726,896,695.51/105,654.38
  6. Step 6: Final answer
    x = 63,668.89

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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.