Home / 109,028.80-163,543.20-73,599.40

Finding the Fourth Proportional to 109,028.80, 163,543.20 and 73,599.40

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Solution

The fourth proportional to 109,028.80, 163,543.20 and 73,599.40 is: 110,399.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,028.80 : 163,543.20 = 73,599.40 : x
  2. Step 2: Convert to fraction form
    109,028.80/163,543.20 = 73,599.40/x
  3. Step 3: Cross multiply
    109,028.80x = 163,543.20 × 73,599.40
  4. Step 4: Simplify right side
    109,028.80x = 12,036,681,394.08
  5. Step 5: Solve for x
    x = 12,036,681,394.08/109,028.80
  6. Step 6: Final answer
    x = 110,399.10

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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.