Home / 155,805.48-215,055.60-92,165.40

Finding the Fourth Proportional to 155,805.48, 215,055.60 and 92,165.40

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Solution

The fourth proportional to 155,805.48, 215,055.60 and 92,165.40 is: 127,214.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,805.48 : 215,055.60 = 92,165.40 : x
  2. Step 2: Convert to fraction form
    155,805.48/215,055.60 = 92,165.40/x
  3. Step 3: Cross multiply
    155,805.48x = 215,055.60 × 92,165.40
  4. Step 4: Simplify right side
    155,805.48x = 19,820,685,396.24
  5. Step 5: Solve for x
    x = 19,820,685,396.24/155,805.48
  6. Step 6: Final answer
    x = 127,214.30

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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.