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Finding the Fourth Proportional to 159,735.70, 220,434.78 and 88,123.60

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Solution

The fourth proportional to 159,735.70, 220,434.78 and 88,123.60 is: 121,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,735.70 : 220,434.78 = 88,123.60 : x
  2. Step 2: Convert to fraction form
    159,735.70/220,434.78 = 88,123.60/x
  3. Step 3: Cross multiply
    159,735.70x = 220,434.78 × 88,123.60
  4. Step 4: Simplify right side
    159,735.70x = 19,425,506,378.81
  5. Step 5: Solve for x
    x = 19,425,506,378.81/159,735.70
  6. Step 6: Final answer
    x = 121,610.30

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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.