Home / 139,011.13-191,835.77-75,349.18

Finding the Fourth Proportional to 139,011.13, 191,835.77 and 75,349.18

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Solution

The fourth proportional to 139,011.13, 191,835.77 and 75,349.18 is: 103,982.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,011.13 : 191,835.77 = 75,349.18 : x
  2. Step 2: Convert to fraction form
    139,011.13/191,835.77 = 75,349.18/x
  3. Step 3: Cross multiply
    139,011.13x = 191,835.77 × 75,349.18
  4. Step 4: Simplify right side
    139,011.13x = 14,454,667,964.17
  5. Step 5: Solve for x
    x = 14,454,667,964.17/139,011.13
  6. Step 6: Final answer
    x = 103,982.09

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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.