Home / 126,271.04-189,437.40-42,031.04

Finding the Fourth Proportional to 126,271.04, 189,437.40 and 42,031.04

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Solution

The fourth proportional to 126,271.04, 189,437.40 and 42,031.04 is: 63,056.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,271.04 : 189,437.40 = 42,031.04 : x
  2. Step 2: Convert to fraction form
    126,271.04/189,437.40 = 42,031.04/x
  3. Step 3: Cross multiply
    126,271.04x = 189,437.40 × 42,031.04
  4. Step 4: Simplify right side
    126,271.04x = 7,962,250,936.90
  5. Step 5: Solve for x
    x = 7,962,250,936.90/126,271.04
  6. Step 6: Final answer
    x = 63,056.83

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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.