Home / 107,320.80-160,851.60-54,703.20

Finding the Fourth Proportional to 107,320.80, 160,851.60 and 54,703.20

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Solution

The fourth proportional to 107,320.80, 160,851.60 and 54,703.20 is: 81,988.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,320.80 : 160,851.60 = 54,703.20 : x
  2. Step 2: Convert to fraction form
    107,320.80/160,851.60 = 54,703.20/x
  3. Step 3: Cross multiply
    107,320.80x = 160,851.60 × 54,703.20
  4. Step 4: Simplify right side
    107,320.80x = 8,799,097,245.12
  5. Step 5: Solve for x
    x = 8,799,097,245.12/107,320.80
  6. Step 6: Final answer
    x = 81,988.74

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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.