Home / 126,386.63-189,434.13-47,450.51

Finding the Fourth Proportional to 126,386.63, 189,434.13 and 47,450.51

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Solution

The fourth proportional to 126,386.63, 189,434.13 and 47,450.51 is: 71,121.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,386.63 : 189,434.13 = 47,450.51 : x
  2. Step 2: Convert to fraction form
    126,386.63/189,434.13 = 47,450.51/x
  3. Step 3: Cross multiply
    126,386.63x = 189,434.13 × 47,450.51
  4. Step 4: Simplify right side
    126,386.63x = 8,988,746,079.91
  5. Step 5: Solve for x
    x = 8,988,746,079.91/126,386.63
  6. Step 6: Final answer
    x = 71,121.02

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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.