Home / 148,914.79-205,504.00-80,931.76

Finding the Fourth Proportional to 148,914.79, 205,504.00 and 80,931.76

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Solution

The fourth proportional to 148,914.79, 205,504.00 and 80,931.76 is: 111,686.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,914.79 : 205,504.00 = 80,931.76 : x
  2. Step 2: Convert to fraction form
    148,914.79/205,504.00 = 80,931.76/x
  3. Step 3: Cross multiply
    148,914.79x = 205,504.00 × 80,931.76
  4. Step 4: Simplify right side
    148,914.79x = 16,631,799,690.95
  5. Step 5: Solve for x
    x = 16,631,799,690.95/148,914.79
  6. Step 6: Final answer
    x = 111,686.69

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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.