Home / 156,968.28-216,615.15-85,348.35

Finding the Fourth Proportional to 156,968.28, 216,615.15 and 85,348.35

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Solution

The fourth proportional to 156,968.28, 216,615.15 and 85,348.35 is: 117,780.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,968.28 : 216,615.15 = 85,348.35 : x
  2. Step 2: Convert to fraction form
    156,968.28/216,615.15 = 85,348.35/x
  3. Step 3: Cross multiply
    156,968.28x = 216,615.15 × 85,348.35
  4. Step 4: Simplify right side
    156,968.28x = 18,487,745,637.50
  5. Step 5: Solve for x
    x = 18,487,745,637.50/156,968.28
  6. Step 6: Final answer
    x = 117,780.14

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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.