Home / 109,120.81-163,688.14-34,243.91

Finding the Fourth Proportional to 109,120.81, 163,688.14 and 34,243.91

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Solution

The fourth proportional to 109,120.81, 163,688.14 and 34,243.91 is: 51,368.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,120.81 : 163,688.14 = 34,243.91 : x
  2. Step 2: Convert to fraction form
    109,120.81/163,688.14 = 34,243.91/x
  3. Step 3: Cross multiply
    109,120.81x = 163,688.14 × 34,243.91
  4. Step 4: Simplify right side
    109,120.81x = 5,605,321,848.62
  5. Step 5: Solve for x
    x = 5,605,321,848.62/109,120.81
  6. Step 6: Final answer
    x = 51,368.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.