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Finding the Fourth Proportional to 102,896.79, 141,808.08 and 84,882.39

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Solution

The fourth proportional to 102,896.79, 141,808.08 and 84,882.39 is: 116,981.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,896.79 : 141,808.08 = 84,882.39 : x
  2. Step 2: Convert to fraction form
    102,896.79/141,808.08 = 84,882.39/x
  3. Step 3: Cross multiply
    102,896.79x = 141,808.08 × 84,882.39
  4. Step 4: Simplify right side
    102,896.79x = 12,037,008,751.71
  5. Step 5: Solve for x
    x = 12,037,008,751.71/102,896.79
  6. Step 6: Final answer
    x = 116,981.38

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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.