Home / 145,715.94-201,082.59-81,183.66

Finding the Fourth Proportional to 145,715.94, 201,082.59 and 81,183.66

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Solution

The fourth proportional to 145,715.94, 201,082.59 and 81,183.66 is: 112,030.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,715.94 : 201,082.59 = 81,183.66 : x
  2. Step 2: Convert to fraction form
    145,715.94/201,082.59 = 81,183.66/x
  3. Step 3: Cross multiply
    145,715.94x = 201,082.59 × 81,183.66
  4. Step 4: Simplify right side
    145,715.94x = 16,324,620,618.48
  5. Step 5: Solve for x
    x = 16,324,620,618.48/145,715.94
  6. Step 6: Final answer
    x = 112,030.44

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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.