Home / 126,143.15-189,000.61-76,118.14

Finding the Fourth Proportional to 126,143.15, 189,000.61 and 76,118.14

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Solution

The fourth proportional to 126,143.15, 189,000.61 and 76,118.14 is: 114,048.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,143.15 : 189,000.61 = 76,118.14 : x
  2. Step 2: Convert to fraction form
    126,143.15/189,000.61 = 76,118.14/x
  3. Step 3: Cross multiply
    126,143.15x = 189,000.61 × 76,118.14
  4. Step 4: Simplify right side
    126,143.15x = 14,386,374,892.07
  5. Step 5: Solve for x
    x = 14,386,374,892.07/126,143.15
  6. Step 6: Final answer
    x = 114,048.01

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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.