Home / 145,815.15-218,727.34-45,976.21

Finding the Fourth Proportional to 145,815.15, 218,727.34 and 45,976.21

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Solution

The fourth proportional to 145,815.15, 218,727.34 and 45,976.21 is: 68,965.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,815.15 : 218,727.34 = 45,976.21 : x
  2. Step 2: Convert to fraction form
    145,815.15/218,727.34 = 45,976.21/x
  3. Step 3: Cross multiply
    145,815.15x = 218,727.34 × 45,976.21
  4. Step 4: Simplify right side
    145,815.15x = 10,056,253,454.82
  5. Step 5: Solve for x
    x = 10,056,253,454.82/145,815.15
  6. Step 6: Final answer
    x = 68,965.77

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1.5x scale

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.