Home / 160,623.20-221,656.70-89,002.58

Finding the Fourth Proportional to 160,623.20, 221,656.70 and 89,002.58

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Solution

The fourth proportional to 160,623.20, 221,656.70 and 89,002.58 is: 122,821.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,623.20 : 221,656.70 = 89,002.58 : x
  2. Step 2: Convert to fraction form
    160,623.20/221,656.70 = 89,002.58/x
  3. Step 3: Cross multiply
    160,623.20x = 221,656.70 × 89,002.58
  4. Step 4: Simplify right side
    160,623.20x = 19,728,018,174.29
  5. Step 5: Solve for x
    x = 19,728,018,174.29/160,623.20
  6. Step 6: Final answer
    x = 122,821.72

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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.