Home / 151,288.40-208,776.20-83,303.92

Finding the Fourth Proportional to 151,288.40, 208,776.20 and 83,303.92

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Solution

The fourth proportional to 151,288.40, 208,776.20 and 83,303.92 is: 114,958.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,288.40 : 208,776.20 = 83,303.92 : x
  2. Step 2: Convert to fraction form
    151,288.40/208,776.20 = 83,303.92/x
  3. Step 3: Cross multiply
    151,288.40x = 208,776.20 × 83,303.92
  4. Step 4: Simplify right side
    151,288.40x = 17,391,875,862.70
  5. Step 5: Solve for x
    x = 17,391,875,862.70/151,288.40
  6. Step 6: Final answer
    x = 114,958.42

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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.