Home / 281,103.93-387,932.60-153,779.52

Finding the Fourth Proportional to 281,103.93, 387,932.60 and 153,779.52

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Solution

The fourth proportional to 281,103.93, 387,932.60 and 153,779.52 is: 212,220.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,103.93 : 387,932.60 = 153,779.52 : x
  2. Step 2: Convert to fraction form
    281,103.93/387,932.60 = 153,779.52/x
  3. Step 3: Cross multiply
    281,103.93x = 387,932.60 × 153,779.52
  4. Step 4: Simplify right side
    281,103.93x = 59,656,088,251.45
  5. Step 5: Solve for x
    x = 59,656,088,251.45/281,103.93
  6. Step 6: Final answer
    x = 212,220.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.