Home / 134,990.27-186,288.36-74,560.76

Finding the Fourth Proportional to 134,990.27, 186,288.36 and 74,560.76

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Solution

The fourth proportional to 134,990.27, 186,288.36 and 74,560.76 is: 102,894.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,990.27 : 186,288.36 = 74,560.76 : x
  2. Step 2: Convert to fraction form
    134,990.27/186,288.36 = 74,560.76/x
  3. Step 3: Cross multiply
    134,990.27x = 186,288.36 × 74,560.76
  4. Step 4: Simplify right side
    134,990.27x = 13,889,801,700.75
  5. Step 5: Solve for x
    x = 13,889,801,700.75/134,990.27
  6. Step 6: Final answer
    x = 102,894.84

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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.