Home / 150,600.95-207,828.08-81,690.24

Finding the Fourth Proportional to 150,600.95, 207,828.08 and 81,690.24

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Solution

The fourth proportional to 150,600.95, 207,828.08 and 81,690.24 is: 112,731.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,600.95 : 207,828.08 = 81,690.24 : x
  2. Step 2: Convert to fraction form
    150,600.95/207,828.08 = 81,690.24/x
  3. Step 3: Cross multiply
    150,600.95x = 207,828.08 × 81,690.24
  4. Step 4: Simplify right side
    150,600.95x = 16,977,525,010.14
  5. Step 5: Solve for x
    x = 16,977,525,010.14/150,600.95
  6. Step 6: Final answer
    x = 112,731.86

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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.