Home / 70,068.04-105,086.30-20,137.01

Finding the Fourth Proportional to 70,068.04, 105,086.30 and 20,137.01

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Solution

The fourth proportional to 70,068.04, 105,086.30 and 20,137.01 is: 30,200.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,068.04 : 105,086.30 = 20,137.01 : x
  2. Step 2: Convert to fraction form
    70,068.04/105,086.30 = 20,137.01/x
  3. Step 3: Cross multiply
    70,068.04x = 105,086.30 × 20,137.01
  4. Step 4: Simplify right side
    70,068.04x = 2,116,123,247.85
  5. Step 5: Solve for x
    x = 2,116,123,247.85/70,068.04
  6. Step 6: Final answer
    x = 30,200.98

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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.