Home / 148,929.12-205,567.20-88,509.60

Finding the Fourth Proportional to 148,929.12, 205,567.20 and 88,509.60

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Solution

The fourth proportional to 148,929.12, 205,567.20 and 88,509.60 is: 122,170.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,929.12 : 205,567.20 = 88,509.60 : x
  2. Step 2: Convert to fraction form
    148,929.12/205,567.20 = 88,509.60/x
  3. Step 3: Cross multiply
    148,929.12x = 205,567.20 × 88,509.60
  4. Step 4: Simplify right side
    148,929.12x = 18,194,670,645.12
  5. Step 5: Solve for x
    x = 18,194,670,645.12/148,929.12
  6. Step 6: Final answer
    x = 122,170.00

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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.