Home / 155,936.29-215,192.20-84,316.36

Finding the Fourth Proportional to 155,936.29, 215,192.20 and 84,316.36

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Solution

The fourth proportional to 155,936.29, 215,192.20 and 84,316.36 is: 116,356.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,936.29 : 215,192.20 = 84,316.36 : x
  2. Step 2: Convert to fraction form
    155,936.29/215,192.20 = 84,316.36/x
  3. Step 3: Cross multiply
    155,936.29x = 215,192.20 × 84,316.36
  4. Step 4: Simplify right side
    155,936.29x = 18,144,221,928.43
  5. Step 5: Solve for x
    x = 18,144,221,928.43/155,936.29
  6. Step 6: Final answer
    x = 116,356.64

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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.