Home / 119,880.06-165,436.98-66,164.95

Finding the Fourth Proportional to 119,880.06, 165,436.98 and 66,164.95

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Solution

The fourth proportional to 119,880.06, 165,436.98 and 66,164.95 is: 91,309.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,880.06 : 165,436.98 = 66,164.95 : x
  2. Step 2: Convert to fraction form
    119,880.06/165,436.98 = 66,164.95/x
  3. Step 3: Cross multiply
    119,880.06x = 165,436.98 × 66,164.95
  4. Step 4: Simplify right side
    119,880.06x = 10,946,129,840.71
  5. Step 5: Solve for x
    x = 10,946,129,840.71/119,880.06
  6. Step 6: Final answer
    x = 91,309.01

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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.