Home / 120,900.10-181,246.20-42,004.06

Finding the Fourth Proportional to 120,900.10, 181,246.20 and 42,004.06

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Solution

The fourth proportional to 120,900.10, 181,246.20 and 42,004.06 is: 62,969.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,900.10 : 181,246.20 = 42,004.06 : x
  2. Step 2: Convert to fraction form
    120,900.10/181,246.20 = 42,004.06/x
  3. Step 3: Cross multiply
    120,900.10x = 181,246.20 × 42,004.06
  4. Step 4: Simplify right side
    120,900.10x = 7,613,076,259.57
  5. Step 5: Solve for x
    x = 7,613,076,259.57/120,900.10
  6. Step 6: Final answer
    x = 62,969.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.