Home / 101,717.72-140,320.59-88,270.10

Finding the Fourth Proportional to 101,717.72, 140,320.59 and 88,270.10

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Solution

The fourth proportional to 101,717.72, 140,320.59 and 88,270.10 is: 121,769.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,717.72 : 140,320.59 = 88,270.10 : x
  2. Step 2: Convert to fraction form
    101,717.72/140,320.59 = 88,270.10/x
  3. Step 3: Cross multiply
    101,717.72x = 140,320.59 × 88,270.10
  4. Step 4: Simplify right side
    101,717.72x = 12,386,112,511.36
  5. Step 5: Solve for x
    x = 12,386,112,511.36/101,717.72
  6. Step 6: Final answer
    x = 121,769.47

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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.