Home / 113,441.12-156,554.88-63,141.20

Finding the Fourth Proportional to 113,441.12, 156,554.88 and 63,141.20

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Solution

The fourth proportional to 113,441.12, 156,554.88 and 63,141.20 is: 87,138.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,441.12 : 156,554.88 = 63,141.20 : x
  2. Step 2: Convert to fraction form
    113,441.12/156,554.88 = 63,141.20/x
  3. Step 3: Cross multiply
    113,441.12x = 156,554.88 × 63,141.20
  4. Step 4: Simplify right side
    113,441.12x = 9,885,062,989.06
  5. Step 5: Solve for x
    x = 9,885,062,989.06/113,441.12
  6. Step 6: Final answer
    x = 87,138.27

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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.