Home / 223,581.02-308,545.79-121,608.72

Finding the Fourth Proportional to 223,581.02, 308,545.79 and 121,608.72

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Solution

The fourth proportional to 223,581.02, 308,545.79 and 121,608.72 is: 167,822.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,581.02 : 308,545.79 = 121,608.72 : x
  2. Step 2: Convert to fraction form
    223,581.02/308,545.79 = 121,608.72/x
  3. Step 3: Cross multiply
    223,581.02x = 308,545.79 × 121,608.72
  4. Step 4: Simplify right side
    223,581.02x = 37,521,857,975.25
  5. Step 5: Solve for x
    x = 37,521,857,975.25/223,581.02
  6. Step 6: Final answer
    x = 167,822.20

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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.