Home / 189,368.95-261,423.84-117,772.04

Finding the Fourth Proportional to 189,368.95, 261,423.84 and 117,772.04

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Solution

The fourth proportional to 189,368.95, 261,423.84 and 117,772.04 is: 162,584.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,368.95 : 261,423.84 = 117,772.04 : x
  2. Step 2: Convert to fraction form
    189,368.95/261,423.84 = 117,772.04/x
  3. Step 3: Cross multiply
    189,368.95x = 261,423.84 × 117,772.04
  4. Step 4: Simplify right side
    189,368.95x = 30,788,418,941.43
  5. Step 5: Solve for x
    x = 30,788,418,941.43/189,368.95
  6. Step 6: Final answer
    x = 162,584.30

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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.