Home / 119,150.64-164,427.80-65,439.05

Finding the Fourth Proportional to 119,150.64, 164,427.80 and 65,439.05

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Solution

The fourth proportional to 119,150.64, 164,427.80 and 65,439.05 is: 90,305.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,150.64 : 164,427.80 = 65,439.05 : x
  2. Step 2: Convert to fraction form
    119,150.64/164,427.80 = 65,439.05/x
  3. Step 3: Cross multiply
    119,150.64x = 164,427.80 × 65,439.05
  4. Step 4: Simplify right side
    119,150.64x = 10,759,997,876.26
  5. Step 5: Solve for x
    x = 10,759,997,876.26/119,150.64
  6. Step 6: Final answer
    x = 90,305.83

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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.