Home / 112,600.47-155,320.95-74,360.37

Finding the Fourth Proportional to 112,600.47, 155,320.95 and 74,360.37

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Solution

The fourth proportional to 112,600.47, 155,320.95 and 74,360.37 is: 102,572.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,600.47 : 155,320.95 = 74,360.37 : x
  2. Step 2: Convert to fraction form
    112,600.47/155,320.95 = 74,360.37/x
  3. Step 3: Cross multiply
    112,600.47x = 155,320.95 × 74,360.37
  4. Step 4: Simplify right side
    112,600.47x = 11,549,723,310.75
  5. Step 5: Solve for x
    x = 11,549,723,310.75/112,600.47
  6. Step 6: Final answer
    x = 102,572.60

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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.