Home / 109,947.70-164,921.55-74,955.70

Finding the Fourth Proportional to 109,947.70, 164,921.55 and 74,955.70

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Solution

The fourth proportional to 109,947.70, 164,921.55 and 74,955.70 is: 112,433.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,947.70 : 164,921.55 = 74,955.70 : x
  2. Step 2: Convert to fraction form
    109,947.70/164,921.55 = 74,955.70/x
  3. Step 3: Cross multiply
    109,947.70x = 164,921.55 × 74,955.70
  4. Step 4: Simplify right side
    109,947.70x = 12,361,810,225.34
  5. Step 5: Solve for x
    x = 12,361,810,225.34/109,947.70
  6. Step 6: Final answer
    x = 112,433.55

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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.