Home / 126,630.15-189,875.07-51,802.81

Finding the Fourth Proportional to 126,630.15, 189,875.07 and 51,802.81

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Solution

The fourth proportional to 126,630.15, 189,875.07 and 51,802.81 is: 77,675.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,630.15 : 189,875.07 = 51,802.81 : x
  2. Step 2: Convert to fraction form
    126,630.15/189,875.07 = 51,802.81/x
  3. Step 3: Cross multiply
    126,630.15x = 189,875.07 × 51,802.81
  4. Step 4: Simplify right side
    126,630.15x = 9,836,062,174.95
  5. Step 5: Solve for x
    x = 9,836,062,174.95/126,630.15
  6. Step 6: Final answer
    x = 77,675.52

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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.