Home / 119,749.48-165,250.50-66,036.76

Finding the Fourth Proportional to 119,749.48, 165,250.50 and 66,036.76

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Solution

The fourth proportional to 119,749.48, 165,250.50 and 66,036.76 is: 91,128.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,749.48 : 165,250.50 = 66,036.76 : x
  2. Step 2: Convert to fraction form
    119,749.48/165,250.50 = 66,036.76/x
  3. Step 3: Cross multiply
    119,749.48x = 165,250.50 × 66,036.76
  4. Step 4: Simplify right side
    119,749.48x = 10,912,607,608.38
  5. Step 5: Solve for x
    x = 10,912,607,608.38/119,749.48
  6. Step 6: Final answer
    x = 91,128.64

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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.