Home / 147,470.69-203,531.45-90,143.07

Finding the Fourth Proportional to 147,470.69, 203,531.45 and 90,143.07

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Solution

The fourth proportional to 147,470.69, 203,531.45 and 90,143.07 is: 124,410.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,470.69 : 203,531.45 = 90,143.07 : x
  2. Step 2: Convert to fraction form
    147,470.69/203,531.45 = 90,143.07/x
  3. Step 3: Cross multiply
    147,470.69x = 203,531.45 × 90,143.07
  4. Step 4: Simplify right side
    147,470.69x = 18,346,949,293.84
  5. Step 5: Solve for x
    x = 18,346,949,293.84/147,470.69
  6. Step 6: Final answer
    x = 124,410.82

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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.