Home / 123,432.40-185,148.60-40,334.80

Finding the Fourth Proportional to 123,432.40, 185,148.60 and 40,334.80

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Solution

The fourth proportional to 123,432.40, 185,148.60 and 40,334.80 is: 60,502.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,432.40 : 185,148.60 = 40,334.80 : x
  2. Step 2: Convert to fraction form
    123,432.40/185,148.60 = 40,334.80/x
  3. Step 3: Cross multiply
    123,432.40x = 185,148.60 × 40,334.80
  4. Step 4: Simplify right side
    123,432.40x = 7,467,931,751.28
  5. Step 5: Solve for x
    x = 7,467,931,751.28/123,432.40
  6. Step 6: Final answer
    x = 60,502.20

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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.