Home / 144,233.75-216,398.69-90,864.11

Finding the Fourth Proportional to 144,233.75, 216,398.69 and 90,864.11

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Solution

The fourth proportional to 144,233.75, 216,398.69 and 90,864.11 is: 136,326.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,233.75 : 216,398.69 = 90,864.11 : x
  2. Step 2: Convert to fraction form
    144,233.75/216,398.69 = 90,864.11/x
  3. Step 3: Cross multiply
    144,233.75x = 216,398.69 × 90,864.11
  4. Step 4: Simplify right side
    144,233.75x = 19,662,874,799.43
  5. Step 5: Solve for x
    x = 19,662,874,799.43/144,233.75
  6. Step 6: Final answer
    x = 136,326.45

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1.5x scale

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.