Home / 160,406.11-221,360.63-99,976.70

Finding the Fourth Proportional to 160,406.11, 221,360.63 and 99,976.70

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Solution

The fourth proportional to 160,406.11, 221,360.63 and 99,976.70 is: 137,967.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,406.11 : 221,360.63 = 99,976.70 : x
  2. Step 2: Convert to fraction form
    160,406.11/221,360.63 = 99,976.70/x
  3. Step 3: Cross multiply
    160,406.11x = 221,360.63 × 99,976.70
  4. Step 4: Simplify right side
    160,406.11x = 22,130,905,297.32
  5. Step 5: Solve for x
    x = 22,130,905,297.32/160,406.11
  6. Step 6: Final answer
    x = 137,967.97

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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.