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Finding the Fourth Proportional to 127,804.96, 176,368.48 and 69,662.20

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Solution

The fourth proportional to 127,804.96, 176,368.48 and 69,662.20 is: 96,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,804.96 : 176,368.48 = 69,662.20 : x
  2. Step 2: Convert to fraction form
    127,804.96/176,368.48 = 69,662.20/x
  3. Step 3: Cross multiply
    127,804.96x = 176,368.48 × 69,662.20
  4. Step 4: Simplify right side
    127,804.96x = 12,286,216,327.46
  5. Step 5: Solve for x
    x = 12,286,216,327.46/127,804.96
  6. Step 6: Final answer
    x = 96,132.55

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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.