Home / 158,935.10-219,276.95-90,015.17

Finding the Fourth Proportional to 158,935.10, 219,276.95 and 90,015.17

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Solution

The fourth proportional to 158,935.10, 219,276.95 and 90,015.17 is: 124,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,935.10 : 219,276.95 = 90,015.17 : x
  2. Step 2: Convert to fraction form
    158,935.10/219,276.95 = 90,015.17/x
  3. Step 3: Cross multiply
    158,935.10x = 219,276.95 × 90,015.17
  4. Step 4: Simplify right side
    158,935.10x = 19,738,250,384.87
  5. Step 5: Solve for x
    x = 19,738,250,384.87/158,935.10
  6. Step 6: Final answer
    x = 124,190.64

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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.