Home / 119,746.40-165,247.98-66,036.56

Finding the Fourth Proportional to 119,746.40, 165,247.98 and 66,036.56

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Solution

The fourth proportional to 119,746.40, 165,247.98 and 66,036.56 is: 91,129.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,746.40 : 165,247.98 = 66,036.56 : x
  2. Step 2: Convert to fraction form
    119,746.40/165,247.98 = 66,036.56/x
  3. Step 3: Cross multiply
    119,746.40x = 165,247.98 × 66,036.56
  4. Step 4: Simplify right side
    119,746.40x = 10,912,408,146.15
  5. Step 5: Solve for x
    x = 10,912,408,146.15/119,746.40
  6. Step 6: Final answer
    x = 91,129.32

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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.