Home / 84,990.16-127,528.08-60,189.60

Finding the Fourth Proportional to 84,990.16, 127,528.08 and 60,189.60

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Solution

The fourth proportional to 84,990.16, 127,528.08 and 60,189.60 is: 90,314.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,990.16 : 127,528.08 = 60,189.60 : x
  2. Step 2: Convert to fraction form
    84,990.16/127,528.08 = 60,189.60/x
  3. Step 3: Cross multiply
    84,990.16x = 127,528.08 × 60,189.60
  4. Step 4: Simplify right side
    84,990.16x = 7,675,864,123.97
  5. Step 5: Solve for x
    x = 7,675,864,123.97/84,990.16
  6. Step 6: Final answer
    x = 90,314.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.