Home / 119,017.89-164,255.34-65,313.38

Finding the Fourth Proportional to 119,017.89, 164,255.34 and 65,313.38

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Solution

The fourth proportional to 119,017.89, 164,255.34 and 65,313.38 is: 90,138.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,017.89 : 164,255.34 = 65,313.38 : x
  2. Step 2: Convert to fraction form
    119,017.89/164,255.34 = 65,313.38/x
  3. Step 3: Cross multiply
    119,017.89x = 164,255.34 × 65,313.38
  4. Step 4: Simplify right side
    119,017.89x = 10,728,070,617.17
  5. Step 5: Solve for x
    x = 10,728,070,617.17/119,017.89
  6. Step 6: Final answer
    x = 90,138.30

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1.5x scale

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.