Home / 135,802.81-187,404.28-75,371.90

Finding the Fourth Proportional to 135,802.81, 187,404.28 and 75,371.90

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Solution

The fourth proportional to 135,802.81, 187,404.28 and 75,371.90 is: 104,011.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,802.81 : 187,404.28 = 75,371.90 : x
  2. Step 2: Convert to fraction form
    135,802.81/187,404.28 = 75,371.90/x
  3. Step 3: Cross multiply
    135,802.81x = 187,404.28 × 75,371.90
  4. Step 4: Simplify right side
    135,802.81x = 14,125,015,526.28
  5. Step 5: Solve for x
    x = 14,125,015,526.28/135,802.81
  6. Step 6: Final answer
    x = 104,011.22

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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.