Home / 109,611.70-164,417.55-74,182.30

Finding the Fourth Proportional to 109,611.70, 164,417.55 and 74,182.30

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Solution

The fourth proportional to 109,611.70, 164,417.55 and 74,182.30 is: 111,273.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,611.70 : 164,417.55 = 74,182.30 : x
  2. Step 2: Convert to fraction form
    109,611.70/164,417.55 = 74,182.30/x
  3. Step 3: Cross multiply
    109,611.70x = 164,417.55 × 74,182.30
  4. Step 4: Simplify right side
    109,611.70x = 12,196,872,019.37
  5. Step 5: Solve for x
    x = 12,196,872,019.37/109,611.70
  6. Step 6: Final answer
    x = 111,273.45

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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.