Home / 148,420.20-204,784.20-88,005.69

Finding the Fourth Proportional to 148,420.20, 204,784.20 and 88,005.69

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Solution

The fourth proportional to 148,420.20, 204,784.20 and 88,005.69 is: 121,426.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,420.20 : 204,784.20 = 88,005.69 : x
  2. Step 2: Convert to fraction form
    148,420.20/204,784.20 = 88,005.69/x
  3. Step 3: Cross multiply
    148,420.20x = 204,784.20 × 88,005.69
  4. Step 4: Simplify right side
    148,420.20x = 18,022,174,822.10
  5. Step 5: Solve for x
    x = 18,022,174,822.10/148,420.20
  6. Step 6: Final answer
    x = 121,426.70

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1.5x scale

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.