Home / 127,753.34-191,712.02-85,680.95

Finding the Fourth Proportional to 127,753.34, 191,712.02 and 85,680.95

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Solution

The fourth proportional to 127,753.34, 191,712.02 and 85,680.95 is: 128,576.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,753.34 : 191,712.02 = 85,680.95 : x
  2. Step 2: Convert to fraction form
    127,753.34/191,712.02 = 85,680.95/x
  3. Step 3: Cross multiply
    127,753.34x = 191,712.02 × 85,680.95
  4. Step 4: Simplify right side
    127,753.34x = 16,426,066,613.05
  5. Step 5: Solve for x
    x = 16,426,066,613.05/127,753.34
  6. Step 6: Final answer
    x = 128,576.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.