Home / 102,538.09-141,502.10-57,213.43

Finding the Fourth Proportional to 102,538.09, 141,502.10 and 57,213.43

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Solution

The fourth proportional to 102,538.09, 141,502.10 and 57,213.43 is: 78,954.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,538.09 : 141,502.10 = 57,213.43 : x
  2. Step 2: Convert to fraction form
    102,538.09/141,502.10 = 57,213.43/x
  3. Step 3: Cross multiply
    102,538.09x = 141,502.10 × 57,213.43
  4. Step 4: Simplify right side
    102,538.09x = 8,095,820,493.20
  5. Step 5: Solve for x
    x = 8,095,820,493.20/102,538.09
  6. Step 6: Final answer
    x = 78,954.27

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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.