Home / 154,656.94-213,423.06-90,122.14

Finding the Fourth Proportional to 154,656.94, 213,423.06 and 90,122.14

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Solution

The fourth proportional to 154,656.94, 213,423.06 and 90,122.14 is: 124,366.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,656.94 : 213,423.06 = 90,122.14 : x
  2. Step 2: Convert to fraction form
    154,656.94/213,423.06 = 90,122.14/x
  3. Step 3: Cross multiply
    154,656.94x = 213,423.06 × 90,122.14
  4. Step 4: Simplify right side
    154,656.94x = 19,234,142,892.55
  5. Step 5: Solve for x
    x = 19,234,142,892.55/154,656.94
  6. Step 6: Final answer
    x = 124,366.50

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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.