Home / 223,505.32-308,437.98-121,530.82

Finding the Fourth Proportional to 223,505.32, 308,437.98 and 121,530.82

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Solution

The fourth proportional to 223,505.32, 308,437.98 and 121,530.82 is: 167,712.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,505.32 : 308,437.98 = 121,530.82 : x
  2. Step 2: Convert to fraction form
    223,505.32/308,437.98 = 121,530.82/x
  3. Step 3: Cross multiply
    223,505.32x = 308,437.98 × 121,530.82
  4. Step 4: Simplify right side
    223,505.32x = 37,484,720,628.54
  5. Step 5: Solve for x
    x = 37,484,720,628.54/223,505.32
  6. Step 6: Final answer
    x = 167,712.88

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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.