Home / 208,013.01-286,966.79-121,928.36

Finding the Fourth Proportional to 208,013.01, 286,966.79 and 121,928.36

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Solution

The fourth proportional to 208,013.01, 286,966.79 and 121,928.36 is: 168,207.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,013.01 : 286,966.79 = 121,928.36 : x
  2. Step 2: Convert to fraction form
    208,013.01/286,966.79 = 121,928.36/x
  3. Step 3: Cross multiply
    208,013.01x = 286,966.79 × 121,928.36
  4. Step 4: Simplify right side
    208,013.01x = 34,989,388,034.69
  5. Step 5: Solve for x
    x = 34,989,388,034.69/208,013.01
  6. Step 6: Final answer
    x = 168,207.69

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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.