Home / 119,810.65-165,336.63-66,100.81

Finding the Fourth Proportional to 119,810.65, 165,336.63 and 66,100.81

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Solution

The fourth proportional to 119,810.65, 165,336.63 and 66,100.81 is: 91,217.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,810.65 : 165,336.63 = 66,100.81 : x
  2. Step 2: Convert to fraction form
    119,810.65/165,336.63 = 66,100.81/x
  3. Step 3: Cross multiply
    119,810.65x = 165,336.63 × 66,100.81
  4. Step 4: Simplify right side
    119,810.65x = 10,928,885,165.67
  5. Step 5: Solve for x
    x = 10,928,885,165.67/119,810.65
  6. Step 6: Final answer
    x = 91,217.98

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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.