Home / 113,698.85-156,905.07-62,713.40

Finding the Fourth Proportional to 113,698.85, 156,905.07 and 62,713.40

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Solution

The fourth proportional to 113,698.85, 156,905.07 and 62,713.40 is: 86,544.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,698.85 : 156,905.07 = 62,713.40 : x
  2. Step 2: Convert to fraction form
    113,698.85/156,905.07 = 62,713.40/x
  3. Step 3: Cross multiply
    113,698.85x = 156,905.07 × 62,713.40
  4. Step 4: Simplify right side
    113,698.85x = 9,840,050,416.94
  5. Step 5: Solve for x
    x = 9,840,050,416.94/113,698.85
  6. Step 6: Final answer
    x = 86,544.85

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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.