Home / 149,827.10-206,752.23-81,830.30

Finding the Fourth Proportional to 149,827.10, 206,752.23 and 81,830.30

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Solution

The fourth proportional to 149,827.10, 206,752.23 and 81,830.30 is: 112,920.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,827.10 : 206,752.23 = 81,830.30 : x
  2. Step 2: Convert to fraction form
    149,827.10/206,752.23 = 81,830.30/x
  3. Step 3: Cross multiply
    149,827.10x = 206,752.23 × 81,830.30
  4. Step 4: Simplify right side
    149,827.10x = 16,918,595,972.81
  5. Step 5: Solve for x
    x = 16,918,595,972.81/149,827.10
  6. Step 6: Final answer
    x = 112,920.80

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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.