Home / 131,526.78-181,506.60-74,938.56

Finding the Fourth Proportional to 131,526.78, 181,506.60 and 74,938.56

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Solution

The fourth proportional to 131,526.78, 181,506.60 and 74,938.56 is: 103,415.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,526.78 : 181,506.60 = 74,938.56 : x
  2. Step 2: Convert to fraction form
    131,526.78/181,506.60 = 74,938.56/x
  3. Step 3: Cross multiply
    131,526.78x = 181,506.60 × 74,938.56
  4. Step 4: Simplify right side
    131,526.78x = 13,601,843,234.50
  5. Step 5: Solve for x
    x = 13,601,843,234.50/131,526.78
  6. Step 6: Final answer
    x = 103,415.01

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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.