Home / 119,783.15-165,287.61-66,064.76

Finding the Fourth Proportional to 119,783.15, 165,287.61 and 66,064.76

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Solution

The fourth proportional to 119,783.15, 165,287.61 and 66,064.76 is: 91,162.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,783.15 : 165,287.61 = 66,064.76 : x
  2. Step 2: Convert to fraction form
    119,783.15/165,287.61 = 66,064.76/x
  3. Step 3: Cross multiply
    119,783.15x = 165,287.61 × 66,064.76
  4. Step 4: Simplify right side
    119,783.15x = 10,919,685,459.19
  5. Step 5: Solve for x
    x = 10,919,685,459.19/119,783.15
  6. Step 6: Final answer
    x = 91,162.12

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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.