Home / 145,659.24-218,488.86-83,286

Finding the Fourth Proportional to 145,659.24, 218,488.86 and 83,286

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Solution

The fourth proportional to 145,659.24, 218,488.86 and 83,286 is: 124,929

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,659.24 : 218,488.86 = 83,286 : x
  2. Step 2: Convert to fraction form
    145,659.24/218,488.86 = 83,286/x
  3. Step 3: Cross multiply
    145,659.24x = 218,488.86 × 83,286
  4. Step 4: Simplify right side
    145,659.24x = 18,197,063,193.96
  5. Step 5: Solve for x
    x = 18,197,063,193.96/145,659.24
  6. Step 6: Final answer
    x = 124,929

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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.