Home / 204,547.50-282,301.47-115,140.78

Finding the Fourth Proportional to 204,547.50, 282,301.47 and 115,140.78

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Solution

The fourth proportional to 204,547.50, 282,301.47 and 115,140.78 is: 158,908.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,547.50 : 282,301.47 = 115,140.78 : x
  2. Step 2: Convert to fraction form
    204,547.50/282,301.47 = 115,140.78/x
  3. Step 3: Cross multiply
    204,547.50x = 282,301.47 × 115,140.78
  4. Step 4: Simplify right side
    204,547.50x = 32,504,411,450.95
  5. Step 5: Solve for x
    x = 32,504,411,450.95/204,547.50
  6. Step 6: Final answer
    x = 158,908.87

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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.