Home / 156,038.35-215,334.48-84,419.91

Finding the Fourth Proportional to 156,038.35, 215,334.48 and 84,419.91

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Solution

The fourth proportional to 156,038.35, 215,334.48 and 84,419.91 is: 116,500.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,038.35 : 215,334.48 = 84,419.91 : x
  2. Step 2: Convert to fraction form
    156,038.35/215,334.48 = 84,419.91/x
  3. Step 3: Cross multiply
    156,038.35x = 215,334.48 × 84,419.91
  4. Step 4: Simplify right side
    156,038.35x = 18,178,518,007.24
  5. Step 5: Solve for x
    x = 18,178,518,007.24/156,038.35
  6. Step 6: Final answer
    x = 116,500.32

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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.