Home / 118,108.80-162,990.24-64,393.92

Finding the Fourth Proportional to 118,108.80, 162,990.24 and 64,393.92

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Solution

The fourth proportional to 118,108.80, 162,990.24 and 64,393.92 is: 88,863.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,108.80 : 162,990.24 = 64,393.92 : x
  2. Step 2: Convert to fraction form
    118,108.80/162,990.24 = 64,393.92/x
  3. Step 3: Cross multiply
    118,108.80x = 162,990.24 × 64,393.92
  4. Step 4: Simplify right side
    118,108.80x = 10,495,580,475.34
  5. Step 5: Solve for x
    x = 10,495,580,475.34/118,108.80
  6. Step 6: Final answer
    x = 88,863.66

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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.