Home / 156,038.90-215,333.70-84,418.88

Finding the Fourth Proportional to 156,038.90, 215,333.70 and 84,418.88

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Solution

The fourth proportional to 156,038.90, 215,333.70 and 84,418.88 is: 116,498.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,038.90 : 215,333.70 = 84,418.88 : x
  2. Step 2: Convert to fraction form
    156,038.90/215,333.70 = 84,418.88/x
  3. Step 3: Cross multiply
    156,038.90x = 215,333.70 × 84,418.88
  4. Step 4: Simplify right side
    156,038.90x = 18,178,229,780.26
  5. Step 5: Solve for x
    x = 18,178,229,780.26/156,038.90
  6. Step 6: Final answer
    x = 116,498.06

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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.