Home / 70,712.04-106,068.06-18,121.98

Finding the Fourth Proportional to 70,712.04, 106,068.06 and 18,121.98

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Solution

The fourth proportional to 70,712.04, 106,068.06 and 18,121.98 is: 27,182.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,712.04 : 106,068.06 = 18,121.98 : x
  2. Step 2: Convert to fraction form
    70,712.04/106,068.06 = 18,121.98/x
  3. Step 3: Cross multiply
    70,712.04x = 106,068.06 × 18,121.98
  4. Step 4: Simplify right side
    70,712.04x = 1,922,163,261.96
  5. Step 5: Solve for x
    x = 1,922,163,261.96/70,712.04
  6. Step 6: Final answer
    x = 27,182.97

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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.