Home / 116,660.32-160,989.84-66,359.20

Finding the Fourth Proportional to 116,660.32, 160,989.84 and 66,359.20

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Solution

The fourth proportional to 116,660.32, 160,989.84 and 66,359.20 is: 91,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,660.32 : 160,989.84 = 66,359.20 : x
  2. Step 2: Convert to fraction form
    116,660.32/160,989.84 = 66,359.20/x
  3. Step 3: Cross multiply
    116,660.32x = 160,989.84 × 66,359.20
  4. Step 4: Simplify right side
    116,660.32x = 10,683,156,990.53
  5. Step 5: Solve for x
    x = 10,683,156,990.53/116,660.32
  6. Step 6: Final answer
    x = 91,574.90

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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.