Home / 157,631.76-217,528.92-86,009.94

Finding the Fourth Proportional to 157,631.76, 217,528.92 and 86,009.94

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Solution

The fourth proportional to 157,631.76, 217,528.92 and 86,009.94 is: 118,692.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,631.76 : 217,528.92 = 86,009.94 : x
  2. Step 2: Convert to fraction form
    157,631.76/217,528.92 = 86,009.94/x
  3. Step 3: Cross multiply
    157,631.76x = 217,528.92 × 86,009.94
  4. Step 4: Simplify right side
    157,631.76x = 18,709,649,357.46
  5. Step 5: Solve for x
    x = 18,709,649,357.46/157,631.76
  6. Step 6: Final answer
    x = 118,692.13

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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.