Home / 150,775.79-208,071.16-81,865.36

Finding the Fourth Proportional to 150,775.79, 208,071.16 and 81,865.36

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Solution

The fourth proportional to 150,775.79, 208,071.16 and 81,865.36 is: 112,974.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,775.79 : 208,071.16 = 81,865.36 : x
  2. Step 2: Convert to fraction form
    150,775.79/208,071.16 = 81,865.36/x
  3. Step 3: Cross multiply
    150,775.79x = 208,071.16 × 81,865.36
  4. Step 4: Simplify right side
    150,775.79x = 17,033,820,623.68
  5. Step 5: Solve for x
    x = 17,033,820,623.68/150,775.79
  6. Step 6: Final answer
    x = 112,974.51

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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.