Home / 144,772.92-215,875.80-135,120.96

Finding the Fourth Proportional to 144,772.92, 215,875.80 and 135,120.96

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Solution

The fourth proportional to 144,772.92, 215,875.80 and 135,120.96 is: 201,483.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,772.92 : 215,875.80 = 135,120.96 : x
  2. Step 2: Convert to fraction form
    144,772.92/215,875.80 = 135,120.96/x
  3. Step 3: Cross multiply
    144,772.92x = 215,875.80 × 135,120.96
  4. Step 4: Simplify right side
    144,772.92x = 29,169,345,336.77
  5. Step 5: Solve for x
    x = 29,169,345,336.77/144,772.92
  6. Step 6: Final answer
    x = 201,483.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.