Home / 156,503.40-234,354.30-86,304.84

Finding the Fourth Proportional to 156,503.40, 234,354.30 and 86,304.84

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Solution

The fourth proportional to 156,503.40, 234,354.30 and 86,304.84 is: 129,236.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,503.40 : 234,354.30 = 86,304.84 : x
  2. Step 2: Convert to fraction form
    156,503.40/234,354.30 = 86,304.84/x
  3. Step 3: Cross multiply
    156,503.40x = 234,354.30 × 86,304.84
  4. Step 4: Simplify right side
    156,503.40x = 20,225,910,364.81
  5. Step 5: Solve for x
    x = 20,225,910,364.81/156,503.40
  6. Step 6: Final answer
    x = 129,236.24

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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.