Home / 144,966.72-199,969.12-91,166.40

Finding the Fourth Proportional to 144,966.72, 199,969.12 and 91,166.40

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Solution

The fourth proportional to 144,966.72, 199,969.12 and 91,166.40 is: 125,756.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,966.72 : 199,969.12 = 91,166.40 : x
  2. Step 2: Convert to fraction form
    144,966.72/199,969.12 = 91,166.40/x
  3. Step 3: Cross multiply
    144,966.72x = 199,969.12 × 91,166.40
  4. Step 4: Simplify right side
    144,966.72x = 18,230,464,781.57
  5. Step 5: Solve for x
    x = 18,230,464,781.57/144,966.72
  6. Step 6: Final answer
    x = 125,756.21

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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.