Home / 145,803.28-201,206.28-82,147.12

Finding the Fourth Proportional to 145,803.28, 201,206.28 and 82,147.12

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Solution

The fourth proportional to 145,803.28, 201,206.28 and 82,147.12 is: 113,361.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,803.28 : 201,206.28 = 82,147.12 : x
  2. Step 2: Convert to fraction form
    145,803.28/201,206.28 = 82,147.12/x
  3. Step 3: Cross multiply
    145,803.28x = 201,206.28 × 82,147.12
  4. Step 4: Simplify right side
    145,803.28x = 16,528,516,427.91
  5. Step 5: Solve for x
    x = 16,528,516,427.91/145,803.28
  6. Step 6: Final answer
    x = 113,361.76

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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.