Home / 139,012.40-191,837.04-75,350

Finding the Fourth Proportional to 139,012.40, 191,837.04 and 75,350

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Solution

The fourth proportional to 139,012.40, 191,837.04 and 75,350 is: 103,982.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,012.40 : 191,837.04 = 75,350 : x
  2. Step 2: Convert to fraction form
    139,012.40/191,837.04 = 75,350/x
  3. Step 3: Cross multiply
    139,012.40x = 191,837.04 × 75,350
  4. Step 4: Simplify right side
    139,012.40x = 14,454,920,964
  5. Step 5: Solve for x
    x = 14,454,920,964/139,012.40
  6. Step 6: Final answer
    x = 103,982.96

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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.