Home / 160,432.51-221,399.48-87,834.19

Finding the Fourth Proportional to 160,432.51, 221,399.48 and 87,834.19

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Solution

The fourth proportional to 160,432.51, 221,399.48 and 87,834.19 is: 121,212.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,432.51 : 221,399.48 = 87,834.19 : x
  2. Step 2: Convert to fraction form
    160,432.51/221,399.48 = 87,834.19/x
  3. Step 3: Cross multiply
    160,432.51x = 221,399.48 × 87,834.19
  4. Step 4: Simplify right side
    160,432.51x = 19,446,443,553.05
  5. Step 5: Solve for x
    x = 19,446,443,553.05/160,432.51
  6. Step 6: Final answer
    x = 121,212.61

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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.