Home / 151,184.79-208,636.59-86,652.65

Finding the Fourth Proportional to 151,184.79, 208,636.59 and 86,652.65

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Solution

The fourth proportional to 151,184.79, 208,636.59 and 86,652.65 is: 119,581.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,184.79 : 208,636.59 = 86,652.65 : x
  2. Step 2: Convert to fraction form
    151,184.79/208,636.59 = 86,652.65/x
  3. Step 3: Cross multiply
    151,184.79x = 208,636.59 × 86,652.65
  4. Step 4: Simplify right side
    151,184.79x = 18,078,912,367.28
  5. Step 5: Solve for x
    x = 18,078,912,367.28/151,184.79
  6. Step 6: Final answer
    x = 119,581.56

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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.