Home / 223,931.44-309,019.08-121,954.60

Finding the Fourth Proportional to 223,931.44, 309,019.08 and 121,954.60

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Solution

The fourth proportional to 223,931.44, 309,019.08 and 121,954.60 is: 168,293.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,931.44 : 309,019.08 = 121,954.60 : x
  2. Step 2: Convert to fraction form
    223,931.44/309,019.08 = 121,954.60/x
  3. Step 3: Cross multiply
    223,931.44x = 309,019.08 × 121,954.60
  4. Step 4: Simplify right side
    223,931.44x = 37,686,298,293.77
  5. Step 5: Solve for x
    x = 37,686,298,293.77/223,931.44
  6. Step 6: Final answer
    x = 168,293.91

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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.