Home / 121,077.12-181,615.36-57,705.14

Finding the Fourth Proportional to 121,077.12, 181,615.36 and 57,705.14

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Solution

The fourth proportional to 121,077.12, 181,615.36 and 57,705.14 is: 86,557.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,077.12 : 181,615.36 = 57,705.14 : x
  2. Step 2: Convert to fraction form
    121,077.12/181,615.36 = 57,705.14/x
  3. Step 3: Cross multiply
    121,077.12x = 181,615.36 × 57,705.14
  4. Step 4: Simplify right side
    121,077.12x = 10,480,139,774.95
  5. Step 5: Solve for x
    x = 10,480,139,774.95/121,077.12
  6. Step 6: Final answer
    x = 86,557.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.