Home / 126,001.40-189,002.10-112,223.30

Finding the Fourth Proportional to 126,001.40, 189,002.10 and 112,223.30

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Solution

The fourth proportional to 126,001.40, 189,002.10 and 112,223.30 is: 168,334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,001.40 : 189,002.10 = 112,223.30 : x
  2. Step 2: Convert to fraction form
    126,001.40/189,002.10 = 112,223.30/x
  3. Step 3: Cross multiply
    126,001.40x = 189,002.10 × 112,223.30
  4. Step 4: Simplify right side
    126,001.40x = 21,210,439,368.93
  5. Step 5: Solve for x
    x = 21,210,439,368.93/126,001.40
  6. Step 6: Final answer
    x = 168,334.95

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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.