Home / 149,478.45-206,280.15-81,495.42

Finding the Fourth Proportional to 149,478.45, 206,280.15 and 81,495.42

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Solution

The fourth proportional to 149,478.45, 206,280.15 and 81,495.42 is: 112,463.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,478.45 : 206,280.15 = 81,495.42 : x
  2. Step 2: Convert to fraction form
    149,478.45/206,280.15 = 81,495.42/x
  3. Step 3: Cross multiply
    149,478.45x = 206,280.15 × 81,495.42
  4. Step 4: Simplify right side
    149,478.45x = 16,810,887,461.91
  5. Step 5: Solve for x
    x = 16,810,887,461.91/149,478.45
  6. Step 6: Final answer
    x = 112,463.62

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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.