Home / 154,604.16-213,359.04-90,069.12

Finding the Fourth Proportional to 154,604.16, 213,359.04 and 90,069.12

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Solution

The fourth proportional to 154,604.16, 213,359.04 and 90,069.12 is: 124,298.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,604.16 : 213,359.04 = 90,069.12 : x
  2. Step 2: Convert to fraction form
    154,604.16/213,359.04 = 90,069.12/x
  3. Step 3: Cross multiply
    154,604.16x = 213,359.04 × 90,069.12
  4. Step 4: Simplify right side
    154,604.16x = 19,217,060,976.84
  5. Step 5: Solve for x
    x = 19,217,060,976.84/154,604.16
  6. Step 6: Final answer
    x = 124,298.47

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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.