Home / 147,167.28-203,118.84-83,511

Finding the Fourth Proportional to 147,167.28, 203,118.84 and 83,511

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Solution

The fourth proportional to 147,167.28, 203,118.84 and 83,511 is: 115,261.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,167.28 : 203,118.84 = 83,511 : x
  2. Step 2: Convert to fraction form
    147,167.28/203,118.84 = 83,511/x
  3. Step 3: Cross multiply
    147,167.28x = 203,118.84 × 83,511
  4. Step 4: Simplify right side
    147,167.28x = 16,962,657,447.24
  5. Step 5: Solve for x
    x = 16,962,657,447.24/147,167.28
  6. Step 6: Final answer
    x = 115,261.07

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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.