Home / 121,205.20-181,807.57-54,567.46

Finding the Fourth Proportional to 121,205.20, 181,807.57 and 54,567.46

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Solution

The fourth proportional to 121,205.20, 181,807.57 and 54,567.46 is: 81,851.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,205.20 : 181,807.57 = 54,567.46 : x
  2. Step 2: Convert to fraction form
    121,205.20/181,807.57 = 54,567.46/x
  3. Step 3: Cross multiply
    121,205.20x = 181,807.57 × 54,567.46
  4. Step 4: Simplify right side
    121,205.20x = 9,920,777,303.67
  5. Step 5: Solve for x
    x = 9,920,777,303.67/121,205.20
  6. Step 6: Final answer
    x = 81,851.09

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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.