Home / 215,713.47-297,685.59-125,123.07

Finding the Fourth Proportional to 215,713.47, 297,685.59 and 125,123.07

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Solution

The fourth proportional to 215,713.47, 297,685.59 and 125,123.07 is: 172,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,713.47 : 297,685.59 = 125,123.07 : x
  2. Step 2: Convert to fraction form
    215,713.47/297,685.59 = 125,123.07/x
  3. Step 3: Cross multiply
    215,713.47x = 297,685.59 × 125,123.07
  4. Step 4: Simplify right side
    215,713.47x = 37,247,334,915.56
  5. Step 5: Solve for x
    x = 37,247,334,915.56/215,713.47
  6. Step 6: Final answer
    x = 172,670.42

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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.