Home / 189,387.20-284,080.80-71,062.40

Finding the Fourth Proportional to 189,387.20, 284,080.80 and 71,062.40

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Solution

The fourth proportional to 189,387.20, 284,080.80 and 71,062.40 is: 106,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,387.20 : 284,080.80 = 71,062.40 : x
  2. Step 2: Convert to fraction form
    189,387.20/284,080.80 = 71,062.40/x
  3. Step 3: Cross multiply
    189,387.20x = 284,080.80 × 71,062.40
  4. Step 4: Simplify right side
    189,387.20x = 20,187,463,441.92
  5. Step 5: Solve for x
    x = 20,187,463,441.92/189,387.20
  6. Step 6: Final answer
    x = 106,593.60

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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.