Home / 109,439.60-164,039.08-42,867.32

Finding the Fourth Proportional to 109,439.60, 164,039.08 and 42,867.32

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Solution

The fourth proportional to 109,439.60, 164,039.08 and 42,867.32 is: 64,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,439.60 : 164,039.08 = 42,867.32 : x
  2. Step 2: Convert to fraction form
    109,439.60/164,039.08 = 42,867.32/x
  3. Step 3: Cross multiply
    109,439.60x = 164,039.08 × 42,867.32
  4. Step 4: Simplify right side
    109,439.60x = 7,031,915,734.87
  5. Step 5: Solve for x
    x = 7,031,915,734.87/109,439.60
  6. Step 6: Final answer
    x = 64,253.85

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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.