Home / 109,037.80-163,556.70-67,047.40

Finding the Fourth Proportional to 109,037.80, 163,556.70 and 67,047.40

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Solution

The fourth proportional to 109,037.80, 163,556.70 and 67,047.40 is: 100,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,037.80 : 163,556.70 = 67,047.40 : x
  2. Step 2: Convert to fraction form
    109,037.80/163,556.70 = 67,047.40/x
  3. Step 3: Cross multiply
    109,037.80x = 163,556.70 × 67,047.40
  4. Step 4: Simplify right side
    109,037.80x = 10,966,051,487.58
  5. Step 5: Solve for x
    x = 10,966,051,487.58/109,037.80
  6. Step 6: Final answer
    x = 100,571.10

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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.