Home / 145,226.20-200,379.40-87,864.10

Finding the Fourth Proportional to 145,226.20, 200,379.40 and 87,864.10

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Solution

The fourth proportional to 145,226.20, 200,379.40 and 87,864.10 is: 121,232.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,226.20 : 200,379.40 = 87,864.10 : x
  2. Step 2: Convert to fraction form
    145,226.20/200,379.40 = 87,864.10/x
  3. Step 3: Cross multiply
    145,226.20x = 200,379.40 × 87,864.10
  4. Step 4: Simplify right side
    145,226.20x = 17,606,155,639.54
  5. Step 5: Solve for x
    x = 17,606,155,639.54/145,226.20
  6. Step 6: Final answer
    x = 121,232.64

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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.