Home / 154,266.30-212,889.06-90,605.16

Finding the Fourth Proportional to 154,266.30, 212,889.06 and 90,605.16

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Solution

The fourth proportional to 154,266.30, 212,889.06 and 90,605.16 is: 125,036.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,266.30 : 212,889.06 = 90,605.16 : x
  2. Step 2: Convert to fraction form
    154,266.30/212,889.06 = 90,605.16/x
  3. Step 3: Cross multiply
    154,266.30x = 212,889.06 × 90,605.16
  4. Step 4: Simplify right side
    154,266.30x = 19,288,847,343.55
  5. Step 5: Solve for x
    x = 19,288,847,343.55/154,266.30
  6. Step 6: Final answer
    x = 125,036.04

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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.