Home / 102,215.93-141,029.66-61,369.45

Finding the Fourth Proportional to 102,215.93, 141,029.66 and 61,369.45

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Solution

The fourth proportional to 102,215.93, 141,029.66 and 61,369.45 is: 84,672.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,215.93 : 141,029.66 = 61,369.45 : x
  2. Step 2: Convert to fraction form
    102,215.93/141,029.66 = 61,369.45/x
  3. Step 3: Cross multiply
    102,215.93x = 141,029.66 × 61,369.45
  4. Step 4: Simplify right side
    102,215.93x = 8,654,912,123.53
  5. Step 5: Solve for x
    x = 8,654,912,123.53/102,215.93
  6. Step 6: Final answer
    x = 84,672.83

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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.