Home / 124,777.14-172,143.62-76,947.46

Finding the Fourth Proportional to 124,777.14, 172,143.62 and 76,947.46

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Solution

The fourth proportional to 124,777.14, 172,143.62 and 76,947.46 is: 106,157.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,777.14 : 172,143.62 = 76,947.46 : x
  2. Step 2: Convert to fraction form
    124,777.14/172,143.62 = 76,947.46/x
  3. Step 3: Cross multiply
    124,777.14x = 172,143.62 × 76,947.46
  4. Step 4: Simplify right side
    124,777.14x = 13,246,014,314.21
  5. Step 5: Solve for x
    x = 13,246,014,314.21/124,777.14
  6. Step 6: Final answer
    x = 106,157.38

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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.