Home / 156,777.04-216,352.28-85,157.20

Finding the Fourth Proportional to 156,777.04, 216,352.28 and 85,157.20

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Solution

The fourth proportional to 156,777.04, 216,352.28 and 85,157.20 is: 117,516.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,777.04 : 216,352.28 = 85,157.20 : x
  2. Step 2: Convert to fraction form
    156,777.04/216,352.28 = 85,157.20/x
  3. Step 3: Cross multiply
    156,777.04x = 216,352.28 × 85,157.20
  4. Step 4: Simplify right side
    156,777.04x = 18,423,954,378.42
  5. Step 5: Solve for x
    x = 18,423,954,378.42/156,777.04
  6. Step 6: Final answer
    x = 117,516.92

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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.