Home / 109,509.45-164,281.92-42,913.47

Finding the Fourth Proportional to 109,509.45, 164,281.92 and 42,913.47

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Solution

The fourth proportional to 109,509.45, 164,281.92 and 42,913.47 is: 64,377.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,509.45 : 164,281.92 = 42,913.47 : x
  2. Step 2: Convert to fraction form
    109,509.45/164,281.92 = 42,913.47/x
  3. Step 3: Cross multiply
    109,509.45x = 164,281.92 × 42,913.47
  4. Step 4: Simplify right side
    109,509.45x = 7,049,907,245.46
  5. Step 5: Solve for x
    x = 7,049,907,245.46/109,509.45
  6. Step 6: Final answer
    x = 64,377.16

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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.