Home / 111,530.15-153,912.81-60,543.36

Finding the Fourth Proportional to 111,530.15, 153,912.81 and 60,543.36

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Solution

The fourth proportional to 111,530.15, 153,912.81 and 60,543.36 is: 83,550.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,530.15 : 153,912.81 = 60,543.36 : x
  2. Step 2: Convert to fraction form
    111,530.15/153,912.81 = 60,543.36/x
  3. Step 3: Cross multiply
    111,530.15x = 153,912.81 × 60,543.36
  4. Step 4: Simplify right side
    111,530.15x = 9,318,398,664.44
  5. Step 5: Solve for x
    x = 9,318,398,664.44/111,530.15
  6. Step 6: Final answer
    x = 83,550.49

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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.