Home / 123,174.18-169,980.48-66,585.54

Finding the Fourth Proportional to 123,174.18, 169,980.48 and 66,585.54

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Solution

The fourth proportional to 123,174.18, 169,980.48 and 66,585.54 is: 91,888.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,174.18 : 169,980.48 = 66,585.54 : x
  2. Step 2: Convert to fraction form
    123,174.18/169,980.48 = 66,585.54/x
  3. Step 3: Cross multiply
    123,174.18x = 169,980.48 × 66,585.54
  4. Step 4: Simplify right side
    123,174.18x = 11,318,242,050.26
  5. Step 5: Solve for x
    x = 11,318,242,050.26/123,174.18
  6. Step 6: Final answer
    x = 91,888.11

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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.