Home / 112,569.60-155,642.88-98,572.80

Finding the Fourth Proportional to 112,569.60, 155,642.88 and 98,572.80

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Solution

The fourth proportional to 112,569.60, 155,642.88 and 98,572.80 is: 136,290.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,569.60 : 155,642.88 = 98,572.80 : x
  2. Step 2: Convert to fraction form
    112,569.60/155,642.88 = 98,572.80/x
  3. Step 3: Cross multiply
    112,569.60x = 155,642.88 × 98,572.80
  4. Step 4: Simplify right side
    112,569.60x = 15,342,154,481.66
  5. Step 5: Solve for x
    x = 15,342,154,481.66/112,569.60
  6. Step 6: Final answer
    x = 136,290.39

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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.