Home / 145,514.80-218,272.20-127,435.60

Finding the Fourth Proportional to 145,514.80, 218,272.20 and 127,435.60

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Solution

The fourth proportional to 145,514.80, 218,272.20 and 127,435.60 is: 191,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,514.80 : 218,272.20 = 127,435.60 : x
  2. Step 2: Convert to fraction form
    145,514.80/218,272.20 = 127,435.60/x
  3. Step 3: Cross multiply
    145,514.80x = 218,272.20 × 127,435.60
  4. Step 4: Simplify right side
    145,514.80x = 27,815,648,770.32
  5. Step 5: Solve for x
    x = 27,815,648,770.32/145,514.80
  6. Step 6: Final answer
    x = 191,153.40

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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.