Home / 123,416.19-184,881.29-78,298.38

Finding the Fourth Proportional to 123,416.19, 184,881.29 and 78,298.38

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Solution

The fourth proportional to 123,416.19, 184,881.29 and 78,298.38 is: 117,293.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,416.19 : 184,881.29 = 78,298.38 : x
  2. Step 2: Convert to fraction form
    123,416.19/184,881.29 = 78,298.38/x
  3. Step 3: Cross multiply
    123,416.19x = 184,881.29 × 78,298.38
  4. Step 4: Simplify right side
    123,416.19x = 14,475,905,107.82
  5. Step 5: Solve for x
    x = 14,475,905,107.82/123,416.19
  6. Step 6: Final answer
    x = 117,293.40

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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.