Home / 109,123.60-163,685.40-39,005.20

Finding the Fourth Proportional to 109,123.60, 163,685.40 and 39,005.20

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Solution

The fourth proportional to 109,123.60, 163,685.40 and 39,005.20 is: 58,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,123.60 : 163,685.40 = 39,005.20 : x
  2. Step 2: Convert to fraction form
    109,123.60/163,685.40 = 39,005.20/x
  3. Step 3: Cross multiply
    109,123.60x = 163,685.40 × 39,005.20
  4. Step 4: Simplify right side
    109,123.60x = 6,384,581,764.08
  5. Step 5: Solve for x
    x = 6,384,581,764.08/109,123.60
  6. Step 6: Final answer
    x = 58,507.80

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1.5x scale

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.