Home / 113,637.61-156,785.15-65,881.43

Finding the Fourth Proportional to 113,637.61, 156,785.15 and 65,881.43

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Solution

The fourth proportional to 113,637.61, 156,785.15 and 65,881.43 is: 90,896.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,637.61 : 156,785.15 = 65,881.43 : x
  2. Step 2: Convert to fraction form
    113,637.61/156,785.15 = 65,881.43/x
  3. Step 3: Cross multiply
    113,637.61x = 156,785.15 × 65,881.43
  4. Step 4: Simplify right side
    113,637.61x = 10,329,228,771.43
  5. Step 5: Solve for x
    x = 10,329,228,771.43/113,637.61
  6. Step 6: Final answer
    x = 90,896.22

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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.