Home / 145,439.33-200,624.26-87,281.19

Finding the Fourth Proportional to 145,439.33, 200,624.26 and 87,281.19

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Solution

The fourth proportional to 145,439.33, 200,624.26 and 87,281.19 is: 120,398.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,439.33 : 200,624.26 = 87,281.19 : x
  2. Step 2: Convert to fraction form
    145,439.33/200,624.26 = 87,281.19/x
  3. Step 3: Cross multiply
    145,439.33x = 200,624.26 × 87,281.19
  4. Step 4: Simplify right side
    145,439.33x = 17,510,723,403.33
  5. Step 5: Solve for x
    x = 17,510,723,403.33/145,439.33
  6. Step 6: Final answer
    x = 120,398.82

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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.