Home / 147,330.43-203,340.65-86,916.06

Finding the Fourth Proportional to 147,330.43, 203,340.65 and 86,916.06

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Solution

The fourth proportional to 147,330.43, 203,340.65 and 86,916.06 is: 119,958.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,330.43 : 203,340.65 = 86,916.06 : x
  2. Step 2: Convert to fraction form
    147,330.43/203,340.65 = 86,916.06/x
  3. Step 3: Cross multiply
    147,330.43x = 203,340.65 × 86,916.06
  4. Step 4: Simplify right side
    147,330.43x = 17,673,567,701.26
  5. Step 5: Solve for x
    x = 17,673,567,701.26/147,330.43
  6. Step 6: Final answer
    x = 119,958.71

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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.