Home / 131,167.95-181,006.43-77,470.35

Finding the Fourth Proportional to 131,167.95, 181,006.43 and 77,470.35

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Solution

The fourth proportional to 131,167.95, 181,006.43 and 77,470.35 is: 106,905.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,167.95 : 181,006.43 = 77,470.35 : x
  2. Step 2: Convert to fraction form
    131,167.95/181,006.43 = 77,470.35/x
  3. Step 3: Cross multiply
    131,167.95x = 181,006.43 × 77,470.35
  4. Step 4: Simplify right side
    131,167.95x = 14,022,631,097.00
  5. Step 5: Solve for x
    x = 14,022,631,097.00/131,167.95
  6. Step 6: Final answer
    x = 106,905.93

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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.