Home / 145,720.04-218,239.86-112,173.90

Finding the Fourth Proportional to 145,720.04, 218,239.86 and 112,173.90

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Solution

The fourth proportional to 145,720.04, 218,239.86 and 112,173.90 is: 167,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,720.04 : 218,239.86 = 112,173.90 : x
  2. Step 2: Convert to fraction form
    145,720.04/218,239.86 = 112,173.90/x
  3. Step 3: Cross multiply
    145,720.04x = 218,239.86 × 112,173.90
  4. Step 4: Simplify right side
    145,720.04x = 24,480,816,231.65
  5. Step 5: Solve for x
    x = 24,480,816,231.65/145,720.04
  6. Step 6: Final answer
    x = 167,998.97

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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.