Home / 131,427.08-181,369.19-74,838.45

Finding the Fourth Proportional to 131,427.08, 181,369.19 and 74,838.45

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Solution

The fourth proportional to 131,427.08, 181,369.19 and 74,838.45 is: 103,276.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,427.08 : 181,369.19 = 74,838.45 : x
  2. Step 2: Convert to fraction form
    131,427.08/181,369.19 = 74,838.45/x
  3. Step 3: Cross multiply
    131,427.08x = 181,369.19 × 74,838.45
  4. Step 4: Simplify right side
    131,427.08x = 13,573,389,057.36
  5. Step 5: Solve for x
    x = 13,573,389,057.36/131,427.08
  6. Step 6: Final answer
    x = 103,276.96

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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.