Home / 156,777.35-216,349.16-85,155.86

Finding the Fourth Proportional to 156,777.35, 216,349.16 and 85,155.86

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Solution

The fourth proportional to 156,777.35, 216,349.16 and 85,155.86 is: 117,513.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,777.35 : 216,349.16 = 85,155.86 : x
  2. Step 2: Convert to fraction form
    156,777.35/216,349.16 = 85,155.86/x
  3. Step 3: Cross multiply
    156,777.35x = 216,349.16 × 85,155.86
  4. Step 4: Simplify right side
    156,777.35x = 18,423,397,272.55
  5. Step 5: Solve for x
    x = 18,423,397,272.55/156,777.35
  6. Step 6: Final answer
    x = 117,513.13

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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.