Home / 157,769.35-219,191.47-155,877.65

Finding the Fourth Proportional to 157,769.35, 219,191.47 and 155,877.65

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Solution

The fourth proportional to 157,769.35, 219,191.47 and 155,877.65 is: 216,563.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,769.35 : 219,191.47 = 155,877.65 : x
  2. Step 2: Convert to fraction form
    157,769.35/219,191.47 = 155,877.65/x
  3. Step 3: Cross multiply
    157,769.35x = 219,191.47 × 155,877.65
  4. Step 4: Simplify right side
    157,769.35x = 34,167,051,085.36
  5. Step 5: Solve for x
    x = 34,167,051,085.36/157,769.35
  6. Step 6: Final answer
    x = 216,563.30

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.