Home / 223,094.79-307,871.28-121,120.38

Finding the Fourth Proportional to 223,094.79, 307,871.28 and 121,120.38

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Solution

The fourth proportional to 223,094.79, 307,871.28 and 121,120.38 is: 167,146.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,094.79 : 307,871.28 = 121,120.38 : x
  2. Step 2: Convert to fraction form
    223,094.79/307,871.28 = 121,120.38/x
  3. Step 3: Cross multiply
    223,094.79x = 307,871.28 × 121,120.38
  4. Step 4: Simplify right side
    223,094.79x = 37,289,486,424.69
  5. Step 5: Solve for x
    x = 37,289,486,424.69/223,094.79
  6. Step 6: Final answer
    x = 167,146.38

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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.