Home / 160,230.05-221,111.67-87,630.46

Finding the Fourth Proportional to 160,230.05, 221,111.67 and 87,630.46

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Solution

The fourth proportional to 160,230.05, 221,111.67 and 87,630.46 is: 120,926.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,230.05 : 221,111.67 = 87,630.46 : x
  2. Step 2: Convert to fraction form
    160,230.05/221,111.67 = 87,630.46/x
  3. Step 3: Cross multiply
    160,230.05x = 221,111.67 × 87,630.46
  4. Step 4: Simplify right side
    160,230.05x = 19,376,115,809.76
  5. Step 5: Solve for x
    x = 19,376,115,809.76/160,230.05
  6. Step 6: Final answer
    x = 120,926.86

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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.