Home / 109,038.70-163,561.68-30,153.58

Finding the Fourth Proportional to 109,038.70, 163,561.68 and 30,153.58

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Solution

The fourth proportional to 109,038.70, 163,561.68 and 30,153.58 is: 45,231.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,038.70 : 163,561.68 = 30,153.58 : x
  2. Step 2: Convert to fraction form
    109,038.70/163,561.68 = 30,153.58/x
  3. Step 3: Cross multiply
    109,038.70x = 163,561.68 × 30,153.58
  4. Step 4: Simplify right side
    109,038.70x = 4,931,970,202.81
  5. Step 5: Solve for x
    x = 4,931,970,202.81/109,038.70
  6. Step 6: Final answer
    x = 45,231.37

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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.