Home / 123,281.81-170,129.18-66,693.18

Finding the Fourth Proportional to 123,281.81, 170,129.18 and 66,693.18

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Solution

The fourth proportional to 123,281.81, 170,129.18 and 66,693.18 is: 92,036.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,281.81 : 170,129.18 = 66,693.18 : x
  2. Step 2: Convert to fraction form
    123,281.81/170,129.18 = 66,693.18/x
  3. Step 3: Cross multiply
    123,281.81x = 170,129.18 × 66,693.18
  4. Step 4: Simplify right side
    123,281.81x = 11,346,456,191.73
  5. Step 5: Solve for x
    x = 11,346,456,191.73/123,281.81
  6. Step 6: Final answer
    x = 92,036.75

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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.