Home / 72,926.12-109,219.22-70,400.58

Finding the Fourth Proportional to 72,926.12, 109,219.22 and 70,400.58

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Solution

The fourth proportional to 72,926.12, 109,219.22 and 70,400.58 is: 105,436.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,926.12 : 109,219.22 = 70,400.58 : x
  2. Step 2: Convert to fraction form
    72,926.12/109,219.22 = 70,400.58/x
  3. Step 3: Cross multiply
    72,926.12x = 109,219.22 × 70,400.58
  4. Step 4: Simplify right side
    72,926.12x = 7,689,095,937.57
  5. Step 5: Solve for x
    x = 7,689,095,937.57/72,926.12
  6. Step 6: Final answer
    x = 105,436.79

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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.