Home / 109,486.45-164,178.63-56,881.81

Finding the Fourth Proportional to 109,486.45, 164,178.63 and 56,881.81

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Solution

The fourth proportional to 109,486.45, 164,178.63 and 56,881.81 is: 85,296.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,486.45 : 164,178.63 = 56,881.81 : x
  2. Step 2: Convert to fraction form
    109,486.45/164,178.63 = 56,881.81/x
  3. Step 3: Cross multiply
    109,486.45x = 164,178.63 × 56,881.81
  4. Step 4: Simplify right side
    109,486.45x = 9,338,777,637.72
  5. Step 5: Solve for x
    x = 9,338,777,637.72/109,486.45
  6. Step 6: Final answer
    x = 85,296.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.