Home / 231,988.25-320,138.34-136,501.13

Finding the Fourth Proportional to 231,988.25, 320,138.34 and 136,501.13

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Solution

The fourth proportional to 231,988.25, 320,138.34 and 136,501.13 is: 188,368.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,988.25 : 320,138.34 = 136,501.13 : x
  2. Step 2: Convert to fraction form
    231,988.25/320,138.34 = 136,501.13/x
  3. Step 3: Cross multiply
    231,988.25x = 320,138.34 × 136,501.13
  4. Step 4: Simplify right side
    231,988.25x = 43,699,245,166.32
  5. Step 5: Solve for x
    x = 43,699,245,166.32/231,988.25
  6. Step 6: Final answer
    x = 188,368.36

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1.5x scale

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.