Home / 145,621.42-218,441.50-45,785.48

Finding the Fourth Proportional to 145,621.42, 218,441.50 and 45,785.48

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Solution

The fourth proportional to 145,621.42, 218,441.50 and 45,785.48 is: 68,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,621.42 : 218,441.50 = 45,785.48 : x
  2. Step 2: Convert to fraction form
    145,621.42/218,441.50 = 45,785.48/x
  3. Step 3: Cross multiply
    145,621.42x = 218,441.50 × 45,785.48
  4. Step 4: Simplify right side
    145,621.42x = 10,001,447,722.75
  5. Step 5: Solve for x
    x = 10,001,447,722.75/145,621.42
  6. Step 6: Final answer
    x = 68,681.16

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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.