Home / 223,518.39-308,459.04-121,545.87

Finding the Fourth Proportional to 223,518.39, 308,459.04 and 121,545.87

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Solution

The fourth proportional to 223,518.39, 308,459.04 and 121,545.87 is: 167,735.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,518.39 : 308,459.04 = 121,545.87 : x
  2. Step 2: Convert to fraction form
    223,518.39/308,459.04 = 121,545.87/x
  3. Step 3: Cross multiply
    223,518.39x = 308,459.04 × 121,545.87
  4. Step 4: Simplify right side
    223,518.39x = 37,491,920,763.65
  5. Step 5: Solve for x
    x = 37,491,920,763.65/223,518.39
  6. Step 6: Final answer
    x = 167,735.29

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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.