Home / 99,112.60-136,888.91-65,272.34

Finding the Fourth Proportional to 99,112.60, 136,888.91 and 65,272.34

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Solution

The fourth proportional to 99,112.60, 136,888.91 and 65,272.34 is: 90,150.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,112.60 : 136,888.91 = 65,272.34 : x
  2. Step 2: Convert to fraction form
    99,112.60/136,888.91 = 65,272.34/x
  3. Step 3: Cross multiply
    99,112.60x = 136,888.91 × 65,272.34
  4. Step 4: Simplify right side
    99,112.60x = 8,935,059,475.75
  5. Step 5: Solve for x
    x = 8,935,059,475.75/99,112.60
  6. Step 6: Final answer
    x = 90,150.59

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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.