Home / 147,347.21-203,363.71-86,932.82

Finding the Fourth Proportional to 147,347.21, 203,363.71 and 86,932.82

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Solution

The fourth proportional to 147,347.21, 203,363.71 and 86,932.82 is: 119,981.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,347.21 : 203,363.71 = 86,932.82 : x
  2. Step 2: Convert to fraction form
    147,347.21/203,363.71 = 86,932.82/x
  3. Step 3: Cross multiply
    147,347.21x = 203,363.71 × 86,932.82
  4. Step 4: Simplify right side
    147,347.21x = 17,678,979,561.81
  5. Step 5: Solve for x
    x = 17,678,979,561.81/147,347.21
  6. Step 6: Final answer
    x = 119,981.78

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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.