Home / 223,108.86-307,888.52-121,132.31

Finding the Fourth Proportional to 223,108.86, 307,888.52 and 121,132.31

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Solution

The fourth proportional to 223,108.86, 307,888.52 and 121,132.31 is: 167,161.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,108.86 : 307,888.52 = 121,132.31 : x
  2. Step 2: Convert to fraction form
    223,108.86/307,888.52 = 121,132.31/x
  3. Step 3: Cross multiply
    223,108.86x = 307,888.52 × 121,132.31
  4. Step 4: Simplify right side
    223,108.86x = 37,295,247,577.53
  5. Step 5: Solve for x
    x = 37,295,247,577.53/223,108.86
  6. Step 6: Final answer
    x = 167,161.66

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1.5x scale

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.