Home / 156,477.75-215,937.25-84,857.40

Finding the Fourth Proportional to 156,477.75, 215,937.25 and 84,857.40

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Solution

The fourth proportional to 156,477.75, 215,937.25 and 84,857.40 is: 117,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,477.75 : 215,937.25 = 84,857.40 : x
  2. Step 2: Convert to fraction form
    156,477.75/215,937.25 = 84,857.40/x
  3. Step 3: Cross multiply
    156,477.75x = 215,937.25 × 84,857.40
  4. Step 4: Simplify right side
    156,477.75x = 18,323,873,598.15
  5. Step 5: Solve for x
    x = 18,323,873,598.15/156,477.75
  6. Step 6: Final answer
    x = 117,102.10

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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.