Home / 103,213.64-142,302.89-66,850.92

Finding the Fourth Proportional to 103,213.64, 142,302.89 and 66,850.92

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Solution

The fourth proportional to 103,213.64, 142,302.89 and 66,850.92 is: 92,168.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,213.64 : 142,302.89 = 66,850.92 : x
  2. Step 2: Convert to fraction form
    103,213.64/142,302.89 = 66,850.92/x
  3. Step 3: Cross multiply
    103,213.64x = 142,302.89 × 66,850.92
  4. Step 4: Simplify right side
    103,213.64x = 9,513,079,282.29
  5. Step 5: Solve for x
    x = 9,513,079,282.29/103,213.64
  6. Step 6: Final answer
    x = 92,168.82

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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.