Home / 112,663.52-155,465.16-67,332.56

Finding the Fourth Proportional to 112,663.52, 155,465.16 and 67,332.56

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Solution

The fourth proportional to 112,663.52, 155,465.16 and 67,332.56 is: 92,912.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,663.52 : 155,465.16 = 67,332.56 : x
  2. Step 2: Convert to fraction form
    112,663.52/155,465.16 = 67,332.56/x
  3. Step 3: Cross multiply
    112,663.52x = 155,465.16 × 67,332.56
  4. Step 4: Simplify right side
    112,663.52x = 10,467,867,213.61
  5. Step 5: Solve for x
    x = 10,467,867,213.61/112,663.52
  6. Step 6: Final answer
    x = 92,912.66

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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.