Home / 110,663.15-152,881.70-72,513.36

Finding the Fourth Proportional to 110,663.15, 152,881.70 and 72,513.36

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Solution

The fourth proportional to 110,663.15, 152,881.70 and 72,513.36 is: 100,177.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,663.15 : 152,881.70 = 72,513.36 : x
  2. Step 2: Convert to fraction form
    110,663.15/152,881.70 = 72,513.36/x
  3. Step 3: Cross multiply
    110,663.15x = 152,881.70 × 72,513.36
  4. Step 4: Simplify right side
    110,663.15x = 11,085,965,386.95
  5. Step 5: Solve for x
    x = 11,085,965,386.95/110,663.15
  6. Step 6: Final answer
    x = 100,177.57

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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.