Home / 145,358.80-218,031.98-45,516.78

Finding the Fourth Proportional to 145,358.80, 218,031.98 and 45,516.78

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Solution

The fourth proportional to 145,358.80, 218,031.98 and 45,516.78 is: 68,273.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,358.80 : 218,031.98 = 45,516.78 : x
  2. Step 2: Convert to fraction form
    145,358.80/218,031.98 = 45,516.78/x
  3. Step 3: Cross multiply
    145,358.80x = 218,031.98 × 45,516.78
  4. Step 4: Simplify right side
    145,358.80x = 9,924,113,666.62
  5. Step 5: Solve for x
    x = 9,924,113,666.62/145,358.80
  6. Step 6: Final answer
    x = 68,273.22

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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.