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Finding the Fourth Proportional to 153,613.44, 211,991.04 and 89,945.28

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Solution

The fourth proportional to 153,613.44, 211,991.04 and 89,945.28 is: 124,127.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,613.44 : 211,991.04 = 89,945.28 : x
  2. Step 2: Convert to fraction form
    153,613.44/211,991.04 = 89,945.28/x
  3. Step 3: Cross multiply
    153,613.44x = 211,991.04 × 89,945.28
  4. Step 4: Simplify right side
    153,613.44x = 19,067,593,450.29
  5. Step 5: Solve for x
    x = 19,067,593,450.29/153,613.44
  6. Step 6: Final answer
    x = 124,127.12

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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.