Home / 113,025.12-155,980.80-62,725.20

Finding the Fourth Proportional to 113,025.12, 155,980.80 and 62,725.20

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Solution

The fourth proportional to 113,025.12, 155,980.80 and 62,725.20 is: 86,564.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,025.12 : 155,980.80 = 62,725.20 : x
  2. Step 2: Convert to fraction form
    113,025.12/155,980.80 = 62,725.20/x
  3. Step 3: Cross multiply
    113,025.12x = 155,980.80 × 62,725.20
  4. Step 4: Simplify right side
    113,025.12x = 9,783,926,876.16
  5. Step 5: Solve for x
    x = 9,783,926,876.16/113,025.12
  6. Step 6: Final answer
    x = 86,564.18

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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.