Home / 112,311.52-155,153.86-97,177.90

Finding the Fourth Proportional to 112,311.52, 155,153.86 and 97,177.90

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Solution

The fourth proportional to 112,311.52, 155,153.86 and 97,177.90 is: 134,247.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,311.52 : 155,153.86 = 97,177.90 : x
  2. Step 2: Convert to fraction form
    112,311.52/155,153.86 = 97,177.90/x
  3. Step 3: Cross multiply
    112,311.52x = 155,153.86 × 97,177.90
  4. Step 4: Simplify right side
    112,311.52x = 15,077,526,291.69
  5. Step 5: Solve for x
    x = 15,077,526,291.69/112,311.52
  6. Step 6: Final answer
    x = 134,247.37

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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.