Home / 124,839.60-187,259.40-109,287.60

Finding the Fourth Proportional to 124,839.60, 187,259.40 and 109,287.60

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Solution

The fourth proportional to 124,839.60, 187,259.40 and 109,287.60 is: 163,931.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,839.60 : 187,259.40 = 109,287.60 : x
  2. Step 2: Convert to fraction form
    124,839.60/187,259.40 = 109,287.60/x
  3. Step 3: Cross multiply
    124,839.60x = 187,259.40 × 109,287.60
  4. Step 4: Simplify right side
    124,839.60x = 20,465,130,403.44
  5. Step 5: Solve for x
    x = 20,465,130,403.44/124,839.60
  6. Step 6: Final answer
    x = 163,931.40

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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.