Home / 151,031.90-208,424.82-83,053.28

Finding the Fourth Proportional to 151,031.90, 208,424.82 and 83,053.28

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Solution

The fourth proportional to 151,031.90, 208,424.82 and 83,053.28 is: 114,613.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,031.90 : 208,424.82 = 83,053.28 : x
  2. Step 2: Convert to fraction form
    151,031.90/208,424.82 = 83,053.28/x
  3. Step 3: Cross multiply
    151,031.90x = 208,424.82 × 83,053.28
  4. Step 4: Simplify right side
    151,031.90x = 17,310,364,934.41
  5. Step 5: Solve for x
    x = 17,310,364,934.41/151,031.90
  6. Step 6: Final answer
    x = 114,613.97

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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.