Home / 113,123.43-156,153.96-84,911.13

Finding the Fourth Proportional to 113,123.43, 156,153.96 and 84,911.13

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Solution

The fourth proportional to 113,123.43, 156,153.96 and 84,911.13 is: 117,210.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,123.43 : 156,153.96 = 84,911.13 : x
  2. Step 2: Convert to fraction form
    113,123.43/156,153.96 = 84,911.13/x
  3. Step 3: Cross multiply
    113,123.43x = 156,153.96 × 84,911.13
  4. Step 4: Simplify right side
    113,123.43x = 13,259,209,197.57
  5. Step 5: Solve for x
    x = 13,259,209,197.57/113,123.43
  6. Step 6: Final answer
    x = 117,210.11

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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.