Home / 145,426.20-218,139.30-94,687.80

Finding the Fourth Proportional to 145,426.20, 218,139.30 and 94,687.80

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Solution

The fourth proportional to 145,426.20, 218,139.30 and 94,687.80 is: 142,031.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,426.20 : 218,139.30 = 94,687.80 : x
  2. Step 2: Convert to fraction form
    145,426.20/218,139.30 = 94,687.80/x
  3. Step 3: Cross multiply
    145,426.20x = 218,139.30 × 94,687.80
  4. Step 4: Simplify right side
    145,426.20x = 20,655,130,410.54
  5. Step 5: Solve for x
    x = 20,655,130,410.54/145,426.20
  6. Step 6: Final answer
    x = 142,031.70

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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.