Home / 129,341.90-193,779.36-54,327.80

Finding the Fourth Proportional to 129,341.90, 193,779.36 and 54,327.80

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Solution

The fourth proportional to 129,341.90, 193,779.36 and 54,327.80 is: 81,393.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,341.90 : 193,779.36 = 54,327.80 : x
  2. Step 2: Convert to fraction form
    129,341.90/193,779.36 = 54,327.80/x
  3. Step 3: Cross multiply
    129,341.90x = 193,779.36 × 54,327.80
  4. Step 4: Simplify right side
    129,341.90x = 10,527,605,345.31
  5. Step 5: Solve for x
    x = 10,527,605,345.31/129,341.90
  6. Step 6: Final answer
    x = 81,393.62

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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.