Home / 109,256.79-163,885.23-30,371.70

Finding the Fourth Proportional to 109,256.79, 163,885.23 and 30,371.70

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Solution

The fourth proportional to 109,256.79, 163,885.23 and 30,371.70 is: 45,557.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,256.79 : 163,885.23 = 30,371.70 : x
  2. Step 2: Convert to fraction form
    109,256.79/163,885.23 = 30,371.70/x
  3. Step 3: Cross multiply
    109,256.79x = 163,885.23 × 30,371.70
  4. Step 4: Simplify right side
    109,256.79x = 4,977,473,039.99
  5. Step 5: Solve for x
    x = 4,977,473,039.99/109,256.79
  6. Step 6: Final answer
    x = 45,557.56

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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.