Home / 97,886.69-135,148.78-75,185.18

Finding the Fourth Proportional to 97,886.69, 135,148.78 and 75,185.18

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Solution

The fourth proportional to 97,886.69, 135,148.78 and 75,185.18 is: 103,805.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,886.69 : 135,148.78 = 75,185.18 : x
  2. Step 2: Convert to fraction form
    97,886.69/135,148.78 = 75,185.18/x
  3. Step 3: Cross multiply
    97,886.69x = 135,148.78 × 75,185.18
  4. Step 4: Simplify right side
    97,886.69x = 10,161,185,351.08
  5. Step 5: Solve for x
    x = 10,161,185,351.08/97,886.69
  6. Step 6: Final answer
    x = 103,805.59

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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.