Home / 144,830.80-217,261.20-39,649.78

Finding the Fourth Proportional to 144,830.80, 217,261.20 and 39,649.78

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Solution

The fourth proportional to 144,830.80, 217,261.20 and 39,649.78 is: 59,478.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,830.80 : 217,261.20 = 39,649.78 : x
  2. Step 2: Convert to fraction form
    144,830.80/217,261.20 = 39,649.78/x
  3. Step 3: Cross multiply
    144,830.80x = 217,261.20 × 39,649.78
  4. Step 4: Simplify right side
    144,830.80x = 8,614,358,782.54
  5. Step 5: Solve for x
    x = 8,614,358,782.54/144,830.80
  6. Step 6: Final answer
    x = 59,478.78

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1.5x scale

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.