Home / 109,511.80-164,267.70-42,954.10

Finding the Fourth Proportional to 109,511.80, 164,267.70 and 42,954.10

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Solution

The fourth proportional to 109,511.80, 164,267.70 and 42,954.10 is: 64,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,511.80 : 164,267.70 = 42,954.10 : x
  2. Step 2: Convert to fraction form
    109,511.80/164,267.70 = 42,954.10/x
  3. Step 3: Cross multiply
    109,511.80x = 164,267.70 × 42,954.10
  4. Step 4: Simplify right side
    109,511.80x = 7,055,971,212.57
  5. Step 5: Solve for x
    x = 7,055,971,212.57/109,511.80
  6. Step 6: Final answer
    x = 64,431.15

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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.