Home / 123,827.80-185,741.70-118,125.40

Finding the Fourth Proportional to 123,827.80, 185,741.70 and 118,125.40

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Solution

The fourth proportional to 123,827.80, 185,741.70 and 118,125.40 is: 177,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,827.80 : 185,741.70 = 118,125.40 : x
  2. Step 2: Convert to fraction form
    123,827.80/185,741.70 = 118,125.40/x
  3. Step 3: Cross multiply
    123,827.80x = 185,741.70 × 118,125.40
  4. Step 4: Simplify right side
    123,827.80x = 21,940,812,609.18
  5. Step 5: Solve for x
    x = 21,940,812,609.18/123,827.80
  6. Step 6: Final answer
    x = 177,188.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.