Home / 154,646.94-213,409.28-90,112.17

Finding the Fourth Proportional to 154,646.94, 213,409.28 and 90,112.17

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Solution

The fourth proportional to 154,646.94, 213,409.28 and 90,112.17 is: 124,352.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,646.94 : 213,409.28 = 90,112.17 : x
  2. Step 2: Convert to fraction form
    154,646.94/213,409.28 = 90,112.17/x
  3. Step 3: Cross multiply
    154,646.94x = 213,409.28 × 90,112.17
  4. Step 4: Simplify right side
    154,646.94x = 19,230,772,868.38
  5. Step 5: Solve for x
    x = 19,230,772,868.38/154,646.94
  6. Step 6: Final answer
    x = 124,352.75

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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.