Home / 135,901.82-187,547.00-75,478.10

Finding the Fourth Proportional to 135,901.82, 187,547.00 and 75,478.10

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Solution

The fourth proportional to 135,901.82, 187,547.00 and 75,478.10 is: 104,161.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,901.82 : 187,547.00 = 75,478.10 : x
  2. Step 2: Convert to fraction form
    135,901.82/187,547.00 = 75,478.10/x
  3. Step 3: Cross multiply
    135,901.82x = 187,547.00 × 75,478.10
  4. Step 4: Simplify right side
    135,901.82x = 14,155,690,471.66
  5. Step 5: Solve for x
    x = 14,155,690,471.66/135,901.82
  6. Step 6: Final answer
    x = 104,161.16

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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.