Home / 159,279.50-219,810.89-91,309.36

Finding the Fourth Proportional to 159,279.50, 219,810.89 and 91,309.36

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Solution

The fourth proportional to 159,279.50, 219,810.89 and 91,309.36 is: 126,009.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,279.50 : 219,810.89 = 91,309.36 : x
  2. Step 2: Convert to fraction form
    159,279.50/219,810.89 = 91,309.36/x
  3. Step 3: Cross multiply
    159,279.50x = 219,810.89 × 91,309.36
  4. Step 4: Simplify right side
    159,279.50x = 20,070,791,686.93
  5. Step 5: Solve for x
    x = 20,070,791,686.93/159,279.50
  6. Step 6: Final answer
    x = 126,009.89

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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.