Home / 113,117.67-156,002.22-86,195.70

Finding the Fourth Proportional to 113,117.67, 156,002.22 and 86,195.70

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Solution

The fourth proportional to 113,117.67, 156,002.22 and 86,195.70 is: 118,873.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,117.67 : 156,002.22 = 86,195.70 : x
  2. Step 2: Convert to fraction form
    113,117.67/156,002.22 = 86,195.70/x
  3. Step 3: Cross multiply
    113,117.67x = 156,002.22 × 86,195.70
  4. Step 4: Simplify right side
    113,117.67x = 13,446,720,554.45
  5. Step 5: Solve for x
    x = 13,446,720,554.45/113,117.67
  6. Step 6: Final answer
    x = 118,873.74

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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.