Home / 131,904.89-182,028.77-77,446.36

Finding the Fourth Proportional to 131,904.89, 182,028.77 and 77,446.36

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Solution

The fourth proportional to 131,904.89, 182,028.77 and 77,446.36 is: 106,875.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,904.89 : 182,028.77 = 77,446.36 : x
  2. Step 2: Convert to fraction form
    131,904.89/182,028.77 = 77,446.36/x
  3. Step 3: Cross multiply
    131,904.89x = 182,028.77 × 77,446.36
  4. Step 4: Simplify right side
    131,904.89x = 14,097,465,782.51
  5. Step 5: Solve for x
    x = 14,097,465,782.51/131,904.89
  6. Step 6: Final answer
    x = 106,875.99

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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.