Home / 154,799.59-213,623.82-90,313.17

Finding the Fourth Proportional to 154,799.59, 213,623.82 and 90,313.17

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Solution

The fourth proportional to 154,799.59, 213,623.82 and 90,313.17 is: 124,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,799.59 : 213,623.82 = 90,313.17 : x
  2. Step 2: Convert to fraction form
    154,799.59/213,623.82 = 90,313.17/x
  3. Step 3: Cross multiply
    154,799.59x = 213,623.82 × 90,313.17
  4. Step 4: Simplify right side
    154,799.59x = 19,293,044,371.71
  5. Step 5: Solve for x
    x = 19,293,044,371.71/154,799.59
  6. Step 6: Final answer
    x = 124,632.40

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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.