Home / 145,284.57-200,402.24-99,883.74

Finding the Fourth Proportional to 145,284.57, 200,402.24 and 99,883.74

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Solution

The fourth proportional to 145,284.57, 200,402.24 and 99,883.74 is: 137,777.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,284.57 : 200,402.24 = 99,883.74 : x
  2. Step 2: Convert to fraction form
    145,284.57/200,402.24 = 99,883.74/x
  3. Step 3: Cross multiply
    145,284.57x = 200,402.24 × 99,883.74
  4. Step 4: Simplify right side
    145,284.57x = 20,016,924,604.65
  5. Step 5: Solve for x
    x = 20,016,924,604.65/145,284.57
  6. Step 6: Final answer
    x = 137,777.36

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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.