Home / 131,426.89-181,368.93-74,838.27

Finding the Fourth Proportional to 131,426.89, 181,368.93 and 74,838.27

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Solution

The fourth proportional to 131,426.89, 181,368.93 and 74,838.27 is: 103,276.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,426.89 : 181,368.93 = 74,838.27 : x
  2. Step 2: Convert to fraction form
    131,426.89/181,368.93 = 74,838.27/x
  3. Step 3: Cross multiply
    131,426.89x = 181,368.93 × 74,838.27
  4. Step 4: Simplify right side
    131,426.89x = 13,573,336,952.95
  5. Step 5: Solve for x
    x = 13,573,336,952.95/131,426.89
  6. Step 6: Final answer
    x = 103,276.71

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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.