Home / 119,931.61-165,505.80-66,216.67

Finding the Fourth Proportional to 119,931.61, 165,505.80 and 66,216.67

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Solution

The fourth proportional to 119,931.61, 165,505.80 and 66,216.67 is: 91,379.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,931.61 : 165,505.80 = 66,216.67 : x
  2. Step 2: Convert to fraction form
    119,931.61/165,505.80 = 66,216.67/x
  3. Step 3: Cross multiply
    119,931.61x = 165,505.80 × 66,216.67
  4. Step 4: Simplify right side
    119,931.61x = 10,959,242,941.69
  5. Step 5: Solve for x
    x = 10,959,242,941.69/119,931.61
  6. Step 6: Final answer
    x = 91,379.10

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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.