Home / 160,717.50-221,690.12-103,431.60

Finding the Fourth Proportional to 160,717.50, 221,690.12 and 103,431.60

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Solution

The fourth proportional to 160,717.50, 221,690.12 and 103,431.60 is: 142,671.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,717.50 : 221,690.12 = 103,431.60 : x
  2. Step 2: Convert to fraction form
    160,717.50/221,690.12 = 103,431.60/x
  3. Step 3: Cross multiply
    160,717.50x = 221,690.12 × 103,431.60
  4. Step 4: Simplify right side
    160,717.50x = 22,929,763,298.63
  5. Step 5: Solve for x
    x = 22,929,763,298.63/160,717.50
  6. Step 6: Final answer
    x = 142,671.23

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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.