Home / 136,986.60-205,512.30-43,492.35

Finding the Fourth Proportional to 136,986.60, 205,512.30 and 43,492.35

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Solution

The fourth proportional to 136,986.60, 205,512.30 and 43,492.35 is: 65,248.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,986.60 : 205,512.30 = 43,492.35 : x
  2. Step 2: Convert to fraction form
    136,986.60/205,512.30 = 43,492.35/x
  3. Step 3: Cross multiply
    136,986.60x = 205,512.30 × 43,492.35
  4. Step 4: Simplify right side
    136,986.60x = 8,938,212,880.91
  5. Step 5: Solve for x
    x = 8,938,212,880.91/136,986.60
  6. Step 6: Final answer
    x = 65,248.81

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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.