Home / 113,512.43-156,700.23-65,756.45

Finding the Fourth Proportional to 113,512.43, 156,700.23 and 65,756.45

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Solution

The fourth proportional to 113,512.43, 156,700.23 and 65,756.45 is: 90,774.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,512.43 : 156,700.23 = 65,756.45 : x
  2. Step 2: Convert to fraction form
    113,512.43/156,700.23 = 65,756.45/x
  3. Step 3: Cross multiply
    113,512.43x = 156,700.23 × 65,756.45
  4. Step 4: Simplify right side
    113,512.43x = 10,304,050,838.98
  5. Step 5: Solve for x
    x = 10,304,050,838.98/113,512.43
  6. Step 6: Final answer
    x = 90,774.65

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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.