Home / 113,156.13-156,138.06-65,400.24

Finding the Fourth Proportional to 113,156.13, 156,138.06 and 65,400.24

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Solution

The fourth proportional to 113,156.13, 156,138.06 and 65,400.24 is: 90,242.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,156.13 : 156,138.06 = 65,400.24 : x
  2. Step 2: Convert to fraction form
    113,156.13/156,138.06 = 65,400.24/x
  3. Step 3: Cross multiply
    113,156.13x = 156,138.06 × 65,400.24
  4. Step 4: Simplify right side
    113,156.13x = 10,211,466,597.13
  5. Step 5: Solve for x
    x = 10,211,466,597.13/113,156.13
  6. Step 6: Final answer
    x = 90,242.27

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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.