Home / 154,381.20-213,041.47-85,473.72

Finding the Fourth Proportional to 154,381.20, 213,041.47 and 85,473.72

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Solution

The fourth proportional to 154,381.20, 213,041.47 and 85,473.72 is: 117,951.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,381.20 : 213,041.47 = 85,473.72 : x
  2. Step 2: Convert to fraction form
    154,381.20/213,041.47 = 85,473.72/x
  3. Step 3: Cross multiply
    154,381.20x = 213,041.47 × 85,473.72
  4. Step 4: Simplify right side
    154,381.20x = 18,209,447,606.56
  5. Step 5: Solve for x
    x = 18,209,447,606.56/154,381.20
  6. Step 6: Final answer
    x = 117,951.20

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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.