Home / 155,966.64-234,053.78-84,907.21

Finding the Fourth Proportional to 155,966.64, 234,053.78 and 84,907.21

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Solution

The fourth proportional to 155,966.64, 234,053.78 and 84,907.21 is: 127,417.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,966.64 : 234,053.78 = 84,907.21 : x
  2. Step 2: Convert to fraction form
    155,966.64/234,053.78 = 84,907.21/x
  3. Step 3: Cross multiply
    155,966.64x = 234,053.78 × 84,907.21
  4. Step 4: Simplify right side
    155,966.64x = 19,872,853,449.75
  5. Step 5: Solve for x
    x = 19,872,853,449.75/155,966.64
  6. Step 6: Final answer
    x = 127,417.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.