Home / 151,319.48-208,845.81-115,441.74

Finding the Fourth Proportional to 151,319.48, 208,845.81 and 115,441.74

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Solution

The fourth proportional to 151,319.48, 208,845.81 and 115,441.74 is: 159,328.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,319.48 : 208,845.81 = 115,441.74 : x
  2. Step 2: Convert to fraction form
    151,319.48/208,845.81 = 115,441.74/x
  3. Step 3: Cross multiply
    151,319.48x = 208,845.81 × 115,441.74
  4. Step 4: Simplify right side
    151,319.48x = 24,109,523,698.11
  5. Step 5: Solve for x
    x = 24,109,523,698.11/151,319.48
  6. Step 6: Final answer
    x = 159,328.62

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1.5x scale

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.