Home / 127,340.10-191,010.15-74,123.10

Finding the Fourth Proportional to 127,340.10, 191,010.15 and 74,123.10

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Solution

The fourth proportional to 127,340.10, 191,010.15 and 74,123.10 is: 111,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,340.10 : 191,010.15 = 74,123.10 : x
  2. Step 2: Convert to fraction form
    127,340.10/191,010.15 = 74,123.10/x
  3. Step 3: Cross multiply
    127,340.10x = 191,010.15 × 74,123.10
  4. Step 4: Simplify right side
    127,340.10x = 14,158,264,449.47
  5. Step 5: Solve for x
    x = 14,158,264,449.47/127,340.10
  6. Step 6: Final answer
    x = 111,184.65

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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.