Home / 137,147.24-189,254.30-76,707.42

Finding the Fourth Proportional to 137,147.24, 189,254.30 and 76,707.42

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Solution

The fourth proportional to 137,147.24, 189,254.30 and 76,707.42 is: 105,851.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,147.24 : 189,254.30 = 76,707.42 : x
  2. Step 2: Convert to fraction form
    137,147.24/189,254.30 = 76,707.42/x
  3. Step 3: Cross multiply
    137,147.24x = 189,254.30 × 76,707.42
  4. Step 4: Simplify right side
    137,147.24x = 14,517,208,693.37
  5. Step 5: Solve for x
    x = 14,517,208,693.37/137,147.24
  6. Step 6: Final answer
    x = 105,851.27

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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.