Home / 113,586.40-156,721.70-64,517.10

Finding the Fourth Proportional to 113,586.40, 156,721.70 and 64,517.10

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Solution

The fourth proportional to 113,586.40, 156,721.70 and 64,517.10 is: 89,017.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,586.40 : 156,721.70 = 64,517.10 : x
  2. Step 2: Convert to fraction form
    113,586.40/156,721.70 = 64,517.10/x
  3. Step 3: Cross multiply
    113,586.40x = 156,721.70 × 64,517.10
  4. Step 4: Simplify right side
    113,586.40x = 10,111,229,591.07
  5. Step 5: Solve for x
    x = 10,111,229,591.07/113,586.40
  6. Step 6: Final answer
    x = 89,017.96

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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.