Home / 154,555.15-213,359.16-103,601.17

Finding the Fourth Proportional to 154,555.15, 213,359.16 and 103,601.17

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Solution

The fourth proportional to 154,555.15, 213,359.16 and 103,601.17 is: 143,018.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,555.15 : 213,359.16 = 103,601.17 : x
  2. Step 2: Convert to fraction form
    154,555.15/213,359.16 = 103,601.17/x
  3. Step 3: Cross multiply
    154,555.15x = 213,359.16 × 103,601.17
  4. Step 4: Simplify right side
    154,555.15x = 22,104,258,606.22
  5. Step 5: Solve for x
    x = 22,104,258,606.22/154,555.15
  6. Step 6: Final answer
    x = 143,018.58

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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.