Home / 113,178.16-156,188.45-62,187.70

Finding the Fourth Proportional to 113,178.16, 156,188.45 and 62,187.70

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Solution

The fourth proportional to 113,178.16, 156,188.45 and 62,187.70 is: 85,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,178.16 : 156,188.45 = 62,187.70 : x
  2. Step 2: Convert to fraction form
    113,178.16/156,188.45 = 62,187.70/x
  3. Step 3: Cross multiply
    113,178.16x = 156,188.45 × 62,187.70
  4. Step 4: Simplify right side
    113,178.16x = 9,713,000,529.92
  5. Step 5: Solve for x
    x = 9,713,000,529.92/113,178.16
  6. Step 6: Final answer
    x = 85,820.45

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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.