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Finding the Fourth Proportional to 147,073.73, 202,975.47 and 86,663.12

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Solution

The fourth proportional to 147,073.73, 202,975.47 and 86,663.12 is: 119,603.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,073.73 : 202,975.47 = 86,663.12 : x
  2. Step 2: Convert to fraction form
    147,073.73/202,975.47 = 86,663.12/x
  3. Step 3: Cross multiply
    147,073.73x = 202,975.47 × 86,663.12
  4. Step 4: Simplify right side
    147,073.73x = 17,590,486,498.79
  5. Step 5: Solve for x
    x = 17,590,486,498.79/147,073.73
  6. Step 6: Final answer
    x = 119,603.19

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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.