Home / 223,122.65-307,911.51-121,149.05

Finding the Fourth Proportional to 223,122.65, 307,911.51 and 121,149.05

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Solution

The fourth proportional to 223,122.65, 307,911.51 and 121,149.05 is: 167,186.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,122.65 : 307,911.51 = 121,149.05 : x
  2. Step 2: Convert to fraction form
    223,122.65/307,911.51 = 121,149.05/x
  3. Step 3: Cross multiply
    223,122.65x = 307,911.51 × 121,149.05
  4. Step 4: Simplify right side
    223,122.65x = 37,303,185,381.01
  5. Step 5: Solve for x
    x = 37,303,185,381.01/223,122.65
  6. Step 6: Final answer
    x = 167,186.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.