Home / 154,512.77-213,134.50-90,798.17

Finding the Fourth Proportional to 154,512.77, 213,134.50 and 90,798.17

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Solution

The fourth proportional to 154,512.77, 213,134.50 and 90,798.17 is: 125,246.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,512.77 : 213,134.50 = 90,798.17 : x
  2. Step 2: Convert to fraction form
    154,512.77/213,134.50 = 90,798.17/x
  3. Step 3: Cross multiply
    154,512.77x = 213,134.50 × 90,798.17
  4. Step 4: Simplify right side
    154,512.77x = 19,352,222,563.87
  5. Step 5: Solve for x
    x = 19,352,222,563.87/154,512.77
  6. Step 6: Final answer
    x = 125,246.75

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1.5x scale

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.