Home / 155,366.28-214,284-100,935.99

Finding the Fourth Proportional to 155,366.28, 214,284 and 100,935.99

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Solution

The fourth proportional to 155,366.28, 214,284 and 100,935.99 is: 139,212.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,366.28 : 214,284 = 100,935.99 : x
  2. Step 2: Convert to fraction form
    155,366.28/214,284 = 100,935.99/x
  3. Step 3: Cross multiply
    155,366.28x = 214,284 × 100,935.99
  4. Step 4: Simplify right side
    155,366.28x = 21,628,967,681.16
  5. Step 5: Solve for x
    x = 21,628,967,681.16/155,366.28
  6. Step 6: Final answer
    x = 139,212.75

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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.