Home / 170,985.29-235,988.40-115,769.57

Finding the Fourth Proportional to 170,985.29, 235,988.40 and 115,769.57

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Solution

The fourth proportional to 170,985.29, 235,988.40 and 115,769.57 is: 159,781.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,985.29 : 235,988.40 = 115,769.57 : x
  2. Step 2: Convert to fraction form
    170,985.29/235,988.40 = 115,769.57/x
  3. Step 3: Cross multiply
    170,985.29x = 235,988.40 × 115,769.57
  4. Step 4: Simplify right side
    170,985.29x = 27,320,275,592.99
  5. Step 5: Solve for x
    x = 27,320,275,592.99/170,985.29
  6. Step 6: Final answer
    x = 159,781.44

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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.