Home / 145,964.38-201,433.08-85,520.56

Finding the Fourth Proportional to 145,964.38, 201,433.08 and 85,520.56

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Solution

The fourth proportional to 145,964.38, 201,433.08 and 85,520.56 is: 118,019.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,964.38 : 201,433.08 = 85,520.56 : x
  2. Step 2: Convert to fraction form
    145,964.38/201,433.08 = 85,520.56/x
  3. Step 3: Cross multiply
    145,964.38x = 201,433.08 × 85,520.56
  4. Step 4: Simplify right side
    145,964.38x = 17,226,669,804.12
  5. Step 5: Solve for x
    x = 17,226,669,804.12/145,964.38
  6. Step 6: Final answer
    x = 118,019.68

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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.