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Finding the Fourth Proportional to 144,039.60, 215,670.60 and 112,935.60

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Solution

The fourth proportional to 144,039.60, 215,670.60 and 112,935.60 is: 169,098.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,039.60 : 215,670.60 = 112,935.60 : x
  2. Step 2: Convert to fraction form
    144,039.60/215,670.60 = 112,935.60/x
  3. Step 3: Cross multiply
    144,039.60x = 215,670.60 × 112,935.60
  4. Step 4: Simplify right side
    144,039.60x = 24,356,888,613.36
  5. Step 5: Solve for x
    x = 24,356,888,613.36/144,039.60
  6. Step 6: Final answer
    x = 169,098.56

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1.5x scale

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.