Home / 140,079.08-209,225.26-126,731.48

Finding the Fourth Proportional to 140,079.08, 209,225.26 and 126,731.48

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Solution

The fourth proportional to 140,079.08, 209,225.26 and 126,731.48 is: 189,288.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,079.08 : 209,225.26 = 126,731.48 : x
  2. Step 2: Convert to fraction form
    140,079.08/209,225.26 = 126,731.48/x
  3. Step 3: Cross multiply
    140,079.08x = 209,225.26 × 126,731.48
  4. Step 4: Simplify right side
    140,079.08x = 26,515,426,853.18
  5. Step 5: Solve for x
    x = 26,515,426,853.18/140,079.08
  6. Step 6: Final answer
    x = 189,288.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.