Home / 113,145.12-156,140.33-62,844.12

Finding the Fourth Proportional to 113,145.12, 156,140.33 and 62,844.12

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Solution

The fourth proportional to 113,145.12, 156,140.33 and 62,844.12 is: 86,724.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,145.12 : 156,140.33 = 62,844.12 : x
  2. Step 2: Convert to fraction form
    113,145.12/156,140.33 = 62,844.12/x
  3. Step 3: Cross multiply
    113,145.12x = 156,140.33 × 62,844.12
  4. Step 4: Simplify right side
    113,145.12x = 9,812,501,321.14
  5. Step 5: Solve for x
    x = 9,812,501,321.14/113,145.12
  6. Step 6: Final answer
    x = 86,724.92

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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.