Home / 102,329.68-141,219.84-57,010.72

Finding the Fourth Proportional to 102,329.68, 141,219.84 and 57,010.72

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Solution

The fourth proportional to 102,329.68, 141,219.84 and 57,010.72 is: 78,677.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,329.68 : 141,219.84 = 57,010.72 : x
  2. Step 2: Convert to fraction form
    102,329.68/141,219.84 = 57,010.72/x
  3. Step 3: Cross multiply
    102,329.68x = 141,219.84 × 57,010.72
  4. Step 4: Simplify right side
    102,329.68x = 8,051,044,756.68
  5. Step 5: Solve for x
    x = 8,051,044,756.68/102,329.68
  6. Step 6: Final answer
    x = 78,677.51

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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.