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Finding the Fourth Proportional to 93,282.93, 128,600.01 and 78,884.91

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Solution

The fourth proportional to 93,282.93, 128,600.01 and 78,884.91 is: 108,750.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,282.93 : 128,600.01 = 78,884.91 : x
  2. Step 2: Convert to fraction form
    93,282.93/128,600.01 = 78,884.91/x
  3. Step 3: Cross multiply
    93,282.93x = 128,600.01 × 78,884.91
  4. Step 4: Simplify right side
    93,282.93x = 10,144,600,214.85
  5. Step 5: Solve for x
    x = 10,144,600,214.85/93,282.93
  6. Step 6: Final answer
    x = 108,750.87

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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.