Home / 154,514.58-213,225.13-85,601.20

Finding the Fourth Proportional to 154,514.58, 213,225.13 and 85,601.20

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Solution

The fourth proportional to 154,514.58, 213,225.13 and 85,601.20 is: 118,126.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,514.58 : 213,225.13 = 85,601.20 : x
  2. Step 2: Convert to fraction form
    154,514.58/213,225.13 = 85,601.20/x
  3. Step 3: Cross multiply
    154,514.58x = 213,225.13 × 85,601.20
  4. Step 4: Simplify right side
    154,514.58x = 18,252,327,913.74
  5. Step 5: Solve for x
    x = 18,252,327,913.74/154,514.58
  6. Step 6: Final answer
    x = 118,126.90

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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.