Home / 175,077.80-262,314.30-81,391.40

Finding the Fourth Proportional to 175,077.80, 262,314.30 and 81,391.40

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Solution

The fourth proportional to 175,077.80, 262,314.30 and 81,391.40 is: 121,946.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,077.80 : 262,314.30 = 81,391.40 : x
  2. Step 2: Convert to fraction form
    175,077.80/262,314.30 = 81,391.40/x
  3. Step 3: Cross multiply
    175,077.80x = 262,314.30 × 81,391.40
  4. Step 4: Simplify right side
    175,077.80x = 21,350,128,117.02
  5. Step 5: Solve for x
    x = 21,350,128,117.02/175,077.80
  6. Step 6: Final answer
    x = 121,946.52

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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.