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Finding the Fourth Proportional to 145,285.80, 200,498.10 and 79,873.82

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Solution

The fourth proportional to 145,285.80, 200,498.10 and 79,873.82 is: 110,227.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,285.80 : 200,498.10 = 79,873.82 : x
  2. Step 2: Convert to fraction form
    145,285.80/200,498.10 = 79,873.82/x
  3. Step 3: Cross multiply
    145,285.80x = 200,498.10 × 79,873.82
  4. Step 4: Simplify right side
    145,285.80x = 16,014,549,574.58
  5. Step 5: Solve for x
    x = 16,014,549,574.58/145,285.80
  6. Step 6: Final answer
    x = 110,227.91

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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.