Home / 131,450.06-181,401.09-74,866.70

Finding the Fourth Proportional to 131,450.06, 181,401.09 and 74,866.70

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Solution

The fourth proportional to 131,450.06, 181,401.09 and 74,866.70 is: 103,316.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,450.06 : 181,401.09 = 74,866.70 : x
  2. Step 2: Convert to fraction form
    131,450.06/181,401.09 = 74,866.70/x
  3. Step 3: Cross multiply
    131,450.06x = 181,401.09 × 74,866.70
  4. Step 4: Simplify right side
    131,450.06x = 13,580,901,157.46
  5. Step 5: Solve for x
    x = 13,580,901,157.46/131,450.06
  6. Step 6: Final answer
    x = 103,316.05

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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.