Home / 132,128.83-198,276.81-69,062.77

Finding the Fourth Proportional to 132,128.83, 198,276.81 and 69,062.77

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Solution

The fourth proportional to 132,128.83, 198,276.81 and 69,062.77 is: 103,637.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,128.83 : 198,276.81 = 69,062.77 : x
  2. Step 2: Convert to fraction form
    132,128.83/198,276.81 = 69,062.77/x
  3. Step 3: Cross multiply
    132,128.83x = 198,276.81 × 69,062.77
  4. Step 4: Simplify right side
    132,128.83x = 13,693,545,725.36
  5. Step 5: Solve for x
    x = 13,693,545,725.36/132,128.83
  6. Step 6: Final answer
    x = 103,637.83

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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.