Home / 131,618.79-181,633.97-74,270.27

Finding the Fourth Proportional to 131,618.79, 181,633.97 and 74,270.27

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Solution

The fourth proportional to 131,618.79, 181,633.97 and 74,270.27 is: 102,492.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,618.79 : 181,633.97 = 74,270.27 : x
  2. Step 2: Convert to fraction form
    131,618.79/181,633.97 = 74,270.27/x
  3. Step 3: Cross multiply
    131,618.79x = 181,633.97 × 74,270.27
  4. Step 4: Simplify right side
    131,618.79x = 13,490,003,193.37
  5. Step 5: Solve for x
    x = 13,490,003,193.37/131,618.79
  6. Step 6: Final answer
    x = 102,492.99

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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.