Home / 89,967.24-134,940.13-69,996.76

Finding the Fourth Proportional to 89,967.24, 134,940.13 and 69,996.76

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Solution

The fourth proportional to 89,967.24, 134,940.13 and 69,996.76 is: 104,986.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,967.24 : 134,940.13 = 69,996.76 : x
  2. Step 2: Convert to fraction form
    89,967.24/134,940.13 = 69,996.76/x
  3. Step 3: Cross multiply
    89,967.24x = 134,940.13 × 69,996.76
  4. Step 4: Simplify right side
    89,967.24x = 9,445,371,381.64
  5. Step 5: Solve for x
    x = 9,445,371,381.64/89,967.24
  6. Step 6: Final answer
    x = 104,986.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.