Home / 123,528.40-185,292.60-40,430.80

Finding the Fourth Proportional to 123,528.40, 185,292.60 and 40,430.80

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Solution

The fourth proportional to 123,528.40, 185,292.60 and 40,430.80 is: 60,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,528.40 : 185,292.60 = 40,430.80 : x
  2. Step 2: Convert to fraction form
    123,528.40/185,292.60 = 40,430.80/x
  3. Step 3: Cross multiply
    123,528.40x = 185,292.60 × 40,430.80
  4. Step 4: Simplify right side
    123,528.40x = 7,491,528,052.08
  5. Step 5: Solve for x
    x = 7,491,528,052.08/123,528.40
  6. Step 6: Final answer
    x = 60,646.20

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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.