Home / 160,740.73-221,821.14-89,120.77

Finding the Fourth Proportional to 160,740.73, 221,821.14 and 89,120.77

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Solution

The fourth proportional to 160,740.73, 221,821.14 and 89,120.77 is: 122,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,740.73 : 221,821.14 = 89,120.77 : x
  2. Step 2: Convert to fraction form
    160,740.73/221,821.14 = 89,120.77/x
  3. Step 3: Cross multiply
    160,740.73x = 221,821.14 × 89,120.77
  4. Step 4: Simplify right side
    160,740.73x = 19,768,870,799.08
  5. Step 5: Solve for x
    x = 19,768,870,799.08/160,740.73
  6. Step 6: Final answer
    x = 122,986.07

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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.