Home / 235,731.01-325,316.78-128,304.94

Finding the Fourth Proportional to 235,731.01, 325,316.78 and 128,304.94

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Solution

The fourth proportional to 235,731.01, 325,316.78 and 128,304.94 is: 177,065.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,731.01 : 325,316.78 = 128,304.94 : x
  2. Step 2: Convert to fraction form
    235,731.01/325,316.78 = 128,304.94/x
  3. Step 3: Cross multiply
    235,731.01x = 325,316.78 × 128,304.94
  4. Step 4: Simplify right side
    235,731.01x = 41,739,749,938.89
  5. Step 5: Solve for x
    x = 41,739,749,938.89/235,731.01
  6. Step 6: Final answer
    x = 177,065.16

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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.