Home / 127,805.81-176,372.72-74,122.66

Finding the Fourth Proportional to 127,805.81, 176,372.72 and 74,122.66

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Solution

The fourth proportional to 127,805.81, 176,372.72 and 74,122.66 is: 102,289.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,805.81 : 176,372.72 = 74,122.66 : x
  2. Step 2: Convert to fraction form
    127,805.81/176,372.72 = 74,122.66/x
  3. Step 3: Cross multiply
    127,805.81x = 176,372.72 × 74,122.66
  4. Step 4: Simplify right side
    127,805.81x = 13,073,214,090.67
  5. Step 5: Solve for x
    x = 13,073,214,090.67/127,805.81
  6. Step 6: Final answer
    x = 102,289.67

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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.