Home / 149,492.10-206,300.72-81,508.52

Finding the Fourth Proportional to 149,492.10, 206,300.72 and 81,508.52

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Solution

The fourth proportional to 149,492.10, 206,300.72 and 81,508.52 is: 112,482.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,492.10 : 206,300.72 = 81,508.52 : x
  2. Step 2: Convert to fraction form
    149,492.10/206,300.72 = 81,508.52/x
  3. Step 3: Cross multiply
    149,492.10x = 206,300.72 × 81,508.52
  4. Step 4: Simplify right side
    149,492.10x = 16,815,266,362.13
  5. Step 5: Solve for x
    x = 16,815,266,362.13/149,492.10
  6. Step 6: Final answer
    x = 112,482.64

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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.