Home / 147,335.69-203,347.64-86,921.12

Finding the Fourth Proportional to 147,335.69, 203,347.64 and 86,921.12

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Solution

The fourth proportional to 147,335.69, 203,347.64 and 86,921.12 is: 119,965.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,335.69 : 203,347.64 = 86,921.12 : x
  2. Step 2: Convert to fraction form
    147,335.69/203,347.64 = 86,921.12/x
  3. Step 3: Cross multiply
    147,335.69x = 203,347.64 × 86,921.12
  4. Step 4: Simplify right side
    147,335.69x = 17,675,205,343.83
  5. Step 5: Solve for x
    x = 17,675,205,343.83/147,335.69
  6. Step 6: Final answer
    x = 119,965.54

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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.