Home / 132,630.39-183,001.55-78,904.91

Finding the Fourth Proportional to 132,630.39, 183,001.55 and 78,904.91

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Solution

The fourth proportional to 132,630.39, 183,001.55 and 78,904.91 is: 108,871.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,630.39 : 183,001.55 = 78,904.91 : x
  2. Step 2: Convert to fraction form
    132,630.39/183,001.55 = 78,904.91/x
  3. Step 3: Cross multiply
    132,630.39x = 183,001.55 × 78,904.91
  4. Step 4: Simplify right side
    132,630.39x = 14,439,721,046.66
  5. Step 5: Solve for x
    x = 14,439,721,046.66/132,630.39
  6. Step 6: Final answer
    x = 108,871.89

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1.5x scale

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.