Home / 112,722.40-155,573.49-64,966.42

Finding the Fourth Proportional to 112,722.40, 155,573.49 and 64,966.42

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Solution

The fourth proportional to 112,722.40, 155,573.49 and 64,966.42 is: 89,663.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,722.40 : 155,573.49 = 64,966.42 : x
  2. Step 2: Convert to fraction form
    112,722.40/155,573.49 = 64,966.42/x
  3. Step 3: Cross multiply
    112,722.40x = 155,573.49 × 64,966.42
  4. Step 4: Simplify right side
    112,722.40x = 10,107,052,692.21
  5. Step 5: Solve for x
    x = 10,107,052,692.21/112,722.40
  6. Step 6: Final answer
    x = 89,663.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.