Home / 129,289.04-193,871.92-45,038.84

Finding the Fourth Proportional to 129,289.04, 193,871.92 and 45,038.84

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Solution

The fourth proportional to 129,289.04, 193,871.92 and 45,038.84 is: 67,536.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,289.04 : 193,871.92 = 45,038.84 : x
  2. Step 2: Convert to fraction form
    129,289.04/193,871.92 = 45,038.84/x
  3. Step 3: Cross multiply
    129,289.04x = 193,871.92 × 45,038.84
  4. Step 4: Simplify right side
    129,289.04x = 8,731,766,385.37
  5. Step 5: Solve for x
    x = 8,731,766,385.37/129,289.04
  6. Step 6: Final answer
    x = 67,536.79

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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.