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Finding the Fourth Proportional to 70,119.68, 97,418.39 and 69,278.93

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Solution

The fourth proportional to 70,119.68, 97,418.39 and 69,278.93 is: 96,250.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,119.68 : 97,418.39 = 69,278.93 : x
  2. Step 2: Convert to fraction form
    70,119.68/97,418.39 = 69,278.93/x
  3. Step 3: Cross multiply
    70,119.68x = 97,418.39 × 69,278.93
  4. Step 4: Simplify right side
    70,119.68x = 6,749,041,751.17
  5. Step 5: Solve for x
    x = 6,749,041,751.17/70,119.68
  6. Step 6: Final answer
    x = 96,250.32

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.