Home / 154,165.68-212,782.93-93,723.50

Finding the Fourth Proportional to 154,165.68, 212,782.93 and 93,723.50

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Solution

The fourth proportional to 154,165.68, 212,782.93 and 93,723.50 is: 129,359.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,165.68 : 212,782.93 = 93,723.50 : x
  2. Step 2: Convert to fraction form
    154,165.68/212,782.93 = 93,723.50/x
  3. Step 3: Cross multiply
    154,165.68x = 212,782.93 × 93,723.50
  4. Step 4: Simplify right side
    154,165.68x = 19,942,760,939.86
  5. Step 5: Solve for x
    x = 19,942,760,939.86/154,165.68
  6. Step 6: Final answer
    x = 129,359.28

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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.