Home / 109,234.31-163,872.14-42,670.23

Finding the Fourth Proportional to 109,234.31, 163,872.14 and 42,670.23

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Solution

The fourth proportional to 109,234.31, 163,872.14 and 42,670.23 is: 64,013.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,234.31 : 163,872.14 = 42,670.23 : x
  2. Step 2: Convert to fraction form
    109,234.31/163,872.14 = 42,670.23/x
  3. Step 3: Cross multiply
    109,234.31x = 163,872.14 × 42,670.23
  4. Step 4: Simplify right side
    109,234.31x = 6,992,461,887.87
  5. Step 5: Solve for x
    x = 6,992,461,887.87/109,234.31
  6. Step 6: Final answer
    x = 64,013.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.