Home / 112,559.22-155,264.04-74,319.12

Finding the Fourth Proportional to 112,559.22, 155,264.04 and 74,319.12

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Solution

The fourth proportional to 112,559.22, 155,264.04 and 74,319.12 is: 102,515.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,559.22 : 155,264.04 = 74,319.12 : x
  2. Step 2: Convert to fraction form
    112,559.22/155,264.04 = 74,319.12/x
  3. Step 3: Cross multiply
    112,559.22x = 155,264.04 × 74,319.12
  4. Step 4: Simplify right side
    112,559.22x = 11,539,086,820.44
  5. Step 5: Solve for x
    x = 11,539,086,820.44/112,559.22
  6. Step 6: Final answer
    x = 102,515.70

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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.