Home / 154,274.26-212,895.66-87,206.26

Finding the Fourth Proportional to 154,274.26, 212,895.66 and 87,206.26

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Solution

The fourth proportional to 154,274.26, 212,895.66 and 87,206.26 is: 120,343.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,274.26 : 212,895.66 = 87,206.26 : x
  2. Step 2: Convert to fraction form
    154,274.26/212,895.66 = 87,206.26/x
  3. Step 3: Cross multiply
    154,274.26x = 212,895.66 × 87,206.26
  4. Step 4: Simplify right side
    154,274.26x = 18,565,834,278.83
  5. Step 5: Solve for x
    x = 18,565,834,278.83/154,274.26
  6. Step 6: Final answer
    x = 120,343.05

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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.