Home / 145,281.72-200,417.58-91,540.92

Finding the Fourth Proportional to 145,281.72, 200,417.58 and 91,540.92

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Solution

The fourth proportional to 145,281.72, 200,417.58 and 91,540.92 is: 126,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,281.72 : 200,417.58 = 91,540.92 : x
  2. Step 2: Convert to fraction form
    145,281.72/200,417.58 = 91,540.92/x
  3. Step 3: Cross multiply
    145,281.72x = 200,417.58 × 91,540.92
  4. Step 4: Simplify right side
    145,281.72x = 18,346,409,657.37
  5. Step 5: Solve for x
    x = 18,346,409,657.37/145,281.72
  6. Step 6: Final answer
    x = 126,281.61

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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.