Home / 127,855.78-176,442.20-70,497.16

Finding the Fourth Proportional to 127,855.78, 176,442.20 and 70,497.16

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Solution

The fourth proportional to 127,855.78, 176,442.20 and 70,497.16 is: 97,286.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,855.78 : 176,442.20 = 70,497.16 : x
  2. Step 2: Convert to fraction form
    127,855.78/176,442.20 = 70,497.16/x
  3. Step 3: Cross multiply
    127,855.78x = 176,442.20 × 70,497.16
  4. Step 4: Simplify right side
    127,855.78x = 12,438,674,004.15
  5. Step 5: Solve for x
    x = 12,438,674,004.15/127,855.78
  6. Step 6: Final answer
    x = 97,286.76

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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.