Home / 150,356.15-207,491.67-81,445.76

Finding the Fourth Proportional to 150,356.15, 207,491.67 and 81,445.76

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Solution

The fourth proportional to 150,356.15, 207,491.67 and 81,445.76 is: 112,395.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,356.15 : 207,491.67 = 81,445.76 : x
  2. Step 2: Convert to fraction form
    150,356.15/207,491.67 = 81,445.76/x
  3. Step 3: Cross multiply
    150,356.15x = 207,491.67 × 81,445.76
  4. Step 4: Simplify right side
    150,356.15x = 16,899,315,312.13
  5. Step 5: Solve for x
    x = 16,899,315,312.13/150,356.15
  6. Step 6: Final answer
    x = 112,395.24

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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.