Home / 102,394.85-141,302.76-57,072.65

Finding the Fourth Proportional to 102,394.85, 141,302.76 and 57,072.65

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Solution

The fourth proportional to 102,394.85, 141,302.76 and 57,072.65 is: 78,759.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,394.85 : 141,302.76 = 57,072.65 : x
  2. Step 2: Convert to fraction form
    102,394.85/141,302.76 = 57,072.65/x
  3. Step 3: Cross multiply
    102,394.85x = 141,302.76 × 57,072.65
  4. Step 4: Simplify right side
    102,394.85x = 8,064,522,965.51
  5. Step 5: Solve for x
    x = 8,064,522,965.51/102,394.85
  6. Step 6: Final answer
    x = 78,759.07

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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.