Home / 88,515.78-122,307.15-70,757.34

Finding the Fourth Proportional to 88,515.78, 122,307.15 and 70,757.34

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Solution

The fourth proportional to 88,515.78, 122,307.15 and 70,757.34 is: 97,769.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,515.78 : 122,307.15 = 70,757.34 : x
  2. Step 2: Convert to fraction form
    88,515.78/122,307.15 = 70,757.34/x
  3. Step 3: Cross multiply
    88,515.78x = 122,307.15 × 70,757.34
  4. Step 4: Simplify right side
    88,515.78x = 8,654,128,596.98
  5. Step 5: Solve for x
    x = 8,654,128,596.98/88,515.78
  6. Step 6: Final answer
    x = 97,769.33

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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.