Home / 138,999.23-206,710.65-134,570.55

Finding the Fourth Proportional to 138,999.23, 206,710.65 and 134,570.55

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Solution

The fourth proportional to 138,999.23, 206,710.65 and 134,570.55 is: 200,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,999.23 : 206,710.65 = 134,570.55 : x
  2. Step 2: Convert to fraction form
    138,999.23/206,710.65 = 134,570.55/x
  3. Step 3: Cross multiply
    138,999.23x = 206,710.65 × 134,570.55
  4. Step 4: Simplify right side
    138,999.23x = 27,817,165,861.36
  5. Step 5: Solve for x
    x = 27,817,165,861.36/138,999.23
  6. Step 6: Final answer
    x = 200,124.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.