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Finding the Fourth Proportional to 126,888, 175,111.18 and 70,299.38

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Solution

The fourth proportional to 126,888, 175,111.18 and 70,299.38 is: 97,016.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,888 : 175,111.18 = 70,299.38 : x
  2. Step 2: Convert to fraction form
    126,888/175,111.18 = 70,299.38/x
  3. Step 3: Cross multiply
    126,888x = 175,111.18 × 70,299.38
  4. Step 4: Simplify right side
    126,888x = 12,310,207,385.07
  5. Step 5: Solve for x
    x = 12,310,207,385.07/126,888
  6. Step 6: Final answer
    x = 97,016.32

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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.