Home / 112,572.60-155,482.38-89,989.80

Finding the Fourth Proportional to 112,572.60, 155,482.38 and 89,989.80

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Solution

The fourth proportional to 112,572.60, 155,482.38 and 89,989.80 is: 124,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,572.60 : 155,482.38 = 89,989.80 : x
  2. Step 2: Convert to fraction form
    112,572.60/155,482.38 = 89,989.80/x
  3. Step 3: Cross multiply
    112,572.60x = 155,482.38 × 89,989.80
  4. Step 4: Simplify right side
    112,572.60x = 13,991,828,279.72
  5. Step 5: Solve for x
    x = 13,991,828,279.72/112,572.60
  6. Step 6: Final answer
    x = 124,291.60

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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.