Home / 135,280.64-186,687.50-74,853.83

Finding the Fourth Proportional to 135,280.64, 186,687.50 and 74,853.83

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Solution

The fourth proportional to 135,280.64, 186,687.50 and 74,853.83 is: 103,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,280.64 : 186,687.50 = 74,853.83 : x
  2. Step 2: Convert to fraction form
    135,280.64/186,687.50 = 74,853.83/x
  3. Step 3: Cross multiply
    135,280.64x = 186,687.50 × 74,853.83
  4. Step 4: Simplify right side
    135,280.64x = 13,974,273,080.42
  5. Step 5: Solve for x
    x = 13,974,273,080.42/135,280.64
  6. Step 6: Final answer
    x = 103,298.40

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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.