Home / 159,000.10-219,419.40-91,016.70

Finding the Fourth Proportional to 159,000.10, 219,419.40 and 91,016.70

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Solution

The fourth proportional to 159,000.10, 219,419.40 and 91,016.70 is: 125,602.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,000.10 : 219,419.40 = 91,016.70 : x
  2. Step 2: Convert to fraction form
    159,000.10/219,419.40 = 91,016.70/x
  3. Step 3: Cross multiply
    159,000.10x = 219,419.40 × 91,016.70
  4. Step 4: Simplify right side
    159,000.10x = 19,970,829,703.98
  5. Step 5: Solve for x
    x = 19,970,829,703.98/159,000.10
  6. Step 6: Final answer
    x = 125,602.62

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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.