Home / 145,807.72-201,214.70-82,145.52

Finding the Fourth Proportional to 145,807.72, 201,214.70 and 82,145.52

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Solution

The fourth proportional to 145,807.72, 201,214.70 and 82,145.52 is: 113,360.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,807.72 : 201,214.70 = 82,145.52 : x
  2. Step 2: Convert to fraction form
    145,807.72/201,214.70 = 82,145.52/x
  3. Step 3: Cross multiply
    145,807.72x = 201,214.70 × 82,145.52
  4. Step 4: Simplify right side
    145,807.72x = 16,528,886,163.14
  5. Step 5: Solve for x
    x = 16,528,886,163.14/145,807.72
  6. Step 6: Final answer
    x = 113,360.84

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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.