Home / 155,944.50-215,187.27-115,130.35

Finding the Fourth Proportional to 155,944.50, 215,187.27 and 115,130.35

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Solution

The fourth proportional to 155,944.50, 215,187.27 and 115,130.35 is: 158,867.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,944.50 : 215,187.27 = 115,130.35 : x
  2. Step 2: Convert to fraction form
    155,944.50/215,187.27 = 115,130.35/x
  3. Step 3: Cross multiply
    155,944.50x = 215,187.27 × 115,130.35
  4. Step 4: Simplify right side
    155,944.50x = 24,774,585,710.64
  5. Step 5: Solve for x
    x = 24,774,585,710.64/155,944.50
  6. Step 6: Final answer
    x = 158,867.97

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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.