Home / 147,399.13-203,386.30-83,713.69

Finding the Fourth Proportional to 147,399.13, 203,386.30 and 83,713.69

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Solution

The fourth proportional to 147,399.13, 203,386.30 and 83,713.69 is: 115,510.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,399.13 : 203,386.30 = 83,713.69 : x
  2. Step 2: Convert to fraction form
    147,399.13/203,386.30 = 83,713.69/x
  3. Step 3: Cross multiply
    147,399.13x = 203,386.30 × 83,713.69
  4. Step 4: Simplify right side
    147,399.13x = 17,026,217,668.45
  5. Step 5: Solve for x
    x = 17,026,217,668.45/147,399.13
  6. Step 6: Final answer
    x = 115,510.98

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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.