Home / 131,630.10-181,633.88-74,266.12

Finding the Fourth Proportional to 131,630.10, 181,633.88 and 74,266.12

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Solution

The fourth proportional to 131,630.10, 181,633.88 and 74,266.12 is: 102,478.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,630.10 : 181,633.88 = 74,266.12 : x
  2. Step 2: Convert to fraction form
    131,630.10/181,633.88 = 74,266.12/x
  3. Step 3: Cross multiply
    131,630.10x = 181,633.88 × 74,266.12
  4. Step 4: Simplify right side
    131,630.10x = 13,489,242,814.73
  5. Step 5: Solve for x
    x = 13,489,242,814.73/131,630.10
  6. Step 6: Final answer
    x = 102,478.41

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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.