Home / 154,553.15-213,356.40-103,599.17

Finding the Fourth Proportional to 154,553.15, 213,356.40 and 103,599.17

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Solution

The fourth proportional to 154,553.15, 213,356.40 and 103,599.17 is: 143,015.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,553.15 : 213,356.40 = 103,599.17 : x
  2. Step 2: Convert to fraction form
    154,553.15/213,356.40 = 103,599.17/x
  3. Step 3: Cross multiply
    154,553.15x = 213,356.40 × 103,599.17
  4. Step 4: Simplify right side
    154,553.15x = 22,103,545,954.19
  5. Step 5: Solve for x
    x = 22,103,545,954.19/154,553.15
  6. Step 6: Final answer
    x = 143,015.82

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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.