Home / 109,172.06-163,750.71-42,599.78

Finding the Fourth Proportional to 109,172.06, 163,750.71 and 42,599.78

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Solution

The fourth proportional to 109,172.06, 163,750.71 and 42,599.78 is: 63,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,172.06 : 163,750.71 = 42,599.78 : x
  2. Step 2: Convert to fraction form
    109,172.06/163,750.71 = 42,599.78/x
  3. Step 3: Cross multiply
    109,172.06x = 163,750.71 × 42,599.78
  4. Step 4: Simplify right side
    109,172.06x = 6,975,744,220.84
  5. Step 5: Solve for x
    x = 6,975,744,220.84/109,172.06
  6. Step 6: Final answer
    x = 63,896.79

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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.