Home / 119,761.61-165,263.36-66,047.00

Finding the Fourth Proportional to 119,761.61, 165,263.36 and 66,047.00

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Solution

The fourth proportional to 119,761.61, 165,263.36 and 66,047.00 is: 91,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,761.61 : 165,263.36 = 66,047.00 : x
  2. Step 2: Convert to fraction form
    119,761.61/165,263.36 = 66,047.00/x
  3. Step 3: Cross multiply
    119,761.61x = 165,263.36 × 66,047.00
  4. Step 4: Simplify right side
    119,761.61x = 10,915,147,981.37
  5. Step 5: Solve for x
    x = 10,915,147,981.37/119,761.61
  6. Step 6: Final answer
    x = 91,140.63

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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.