Home / 261,530.04-391,950.74-103,672.44

Finding the Fourth Proportional to 261,530.04, 391,950.74 and 103,672.44

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Solution

The fourth proportional to 261,530.04, 391,950.74 and 103,672.44 is: 155,372.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,530.04 : 391,950.74 = 103,672.44 : x
  2. Step 2: Convert to fraction form
    261,530.04/391,950.74 = 103,672.44/x
  3. Step 3: Cross multiply
    261,530.04x = 391,950.74 × 103,672.44
  4. Step 4: Simplify right side
    261,530.04x = 40,634,489,575.61
  5. Step 5: Solve for x
    x = 40,634,489,575.61/261,530.04
  6. Step 6: Final answer
    x = 155,372.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.