Home / 170,686.40-255,822.24-120,781.08

Finding the Fourth Proportional to 170,686.40, 255,822.24 and 120,781.08

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Solution

The fourth proportional to 170,686.40, 255,822.24 and 120,781.08 is: 181,024.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,686.40 : 255,822.24 = 120,781.08 : x
  2. Step 2: Convert to fraction form
    170,686.40/255,822.24 = 120,781.08/x
  3. Step 3: Cross multiply
    170,686.40x = 255,822.24 × 120,781.08
  4. Step 4: Simplify right side
    170,686.40x = 30,898,486,435.22
  5. Step 5: Solve for x
    x = 30,898,486,435.22/170,686.40
  6. Step 6: Final answer
    x = 181,024.89

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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.