Home / 160,727.52-221,795.12-89,103.36

Finding the Fourth Proportional to 160,727.52, 221,795.12 and 89,103.36

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Solution

The fourth proportional to 160,727.52, 221,795.12 and 89,103.36 is: 122,957.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,727.52 : 221,795.12 = 89,103.36 : x
  2. Step 2: Convert to fraction form
    160,727.52/221,795.12 = 89,103.36/x
  3. Step 3: Cross multiply
    160,727.52x = 221,795.12 × 89,103.36
  4. Step 4: Simplify right side
    160,727.52x = 19,762,690,423.60
  5. Step 5: Solve for x
    x = 19,762,690,423.60/160,727.52
  6. Step 6: Final answer
    x = 122,957.73

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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.