Home / 124,062.16-171,132.73-78,048.49

Finding the Fourth Proportional to 124,062.16, 171,132.73 and 78,048.49

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Solution

The fourth proportional to 124,062.16, 171,132.73 and 78,048.49 is: 107,660.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,062.16 : 171,132.73 = 78,048.49 : x
  2. Step 2: Convert to fraction form
    124,062.16/171,132.73 = 78,048.49/x
  3. Step 3: Cross multiply
    124,062.16x = 171,132.73 × 78,048.49
  4. Step 4: Simplify right side
    124,062.16x = 13,356,651,166.08
  5. Step 5: Solve for x
    x = 13,356,651,166.08/124,062.16
  6. Step 6: Final answer
    x = 107,660.96

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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.