Home / 129,094.15-193,582.91-45,990.31

Finding the Fourth Proportional to 129,094.15, 193,582.91 and 45,990.31

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Solution

The fourth proportional to 129,094.15, 193,582.91 and 45,990.31 is: 68,964.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,094.15 : 193,582.91 = 45,990.31 : x
  2. Step 2: Convert to fraction form
    129,094.15/193,582.91 = 45,990.31/x
  3. Step 3: Cross multiply
    129,094.15x = 193,582.91 × 45,990.31
  4. Step 4: Simplify right side
    129,094.15x = 8,902,937,811.65
  5. Step 5: Solve for x
    x = 8,902,937,811.65/129,094.15
  6. Step 6: Final answer
    x = 68,964.69

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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.