Home / 102,092.13-140,853.47-61,790.58

Finding the Fourth Proportional to 102,092.13, 140,853.47 and 61,790.58

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Solution

The fourth proportional to 102,092.13, 140,853.47 and 61,790.58 is: 85,250.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,092.13 : 140,853.47 = 61,790.58 : x
  2. Step 2: Convert to fraction form
    102,092.13/140,853.47 = 61,790.58/x
  3. Step 3: Cross multiply
    102,092.13x = 140,853.47 × 61,790.58
  4. Step 4: Simplify right side
    102,092.13x = 8,703,417,297.36
  5. Step 5: Solve for x
    x = 8,703,417,297.36/102,092.13
  6. Step 6: Final answer
    x = 85,250.62

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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.