Home / 131,174.12-181,019.45-74,585.49

Finding the Fourth Proportional to 131,174.12, 181,019.45 and 74,585.49

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Solution

The fourth proportional to 131,174.12, 181,019.45 and 74,585.49 is: 102,927.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,174.12 : 181,019.45 = 74,585.49 : x
  2. Step 2: Convert to fraction form
    131,174.12/181,019.45 = 74,585.49/x
  3. Step 3: Cross multiply
    131,174.12x = 181,019.45 × 74,585.49
  4. Step 4: Simplify right side
    131,174.12x = 13,501,424,004.85
  5. Step 5: Solve for x
    x = 13,501,424,004.85/131,174.12
  6. Step 6: Final answer
    x = 102,927.50

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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.