Home / 119,880.57-165,437.67-66,165.45

Finding the Fourth Proportional to 119,880.57, 165,437.67 and 66,165.45

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Solution

The fourth proportional to 119,880.57, 165,437.67 and 66,165.45 is: 91,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,880.57 : 165,437.67 = 66,165.45 : x
  2. Step 2: Convert to fraction form
    119,880.57/165,437.67 = 66,165.45/x
  3. Step 3: Cross multiply
    119,880.57x = 165,437.67 × 66,165.45
  4. Step 4: Simplify right side
    119,880.57x = 10,946,257,882.50
  5. Step 5: Solve for x
    x = 10,946,257,882.50/119,880.57
  6. Step 6: Final answer
    x = 91,309.70

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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.