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Finding the Fourth Proportional to 140,065.70, 210,066.53 and 40,225.10

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Solution

The fourth proportional to 140,065.70, 210,066.53 and 40,225.10 is: 60,328.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,065.70 : 210,066.53 = 40,225.10 : x
  2. Step 2: Convert to fraction form
    140,065.70/210,066.53 = 40,225.10/x
  3. Step 3: Cross multiply
    140,065.70x = 210,066.53 × 40,225.10
  4. Step 4: Simplify right side
    140,065.70x = 8,449,945,924.44
  5. Step 5: Solve for x
    x = 8,449,945,924.44/140,065.70
  6. Step 6: Final answer
    x = 60,328.45

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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.