Home / 156,117.90-215,443.29-84,497.94

Finding the Fourth Proportional to 156,117.90, 215,443.29 and 84,497.94

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Solution

The fourth proportional to 156,117.90, 215,443.29 and 84,497.94 is: 116,607.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,117.90 : 215,443.29 = 84,497.94 : x
  2. Step 2: Convert to fraction form
    156,117.90/215,443.29 = 84,497.94/x
  3. Step 3: Cross multiply
    156,117.90x = 215,443.29 × 84,497.94
  4. Step 4: Simplify right side
    156,117.90x = 18,204,514,191.82
  5. Step 5: Solve for x
    x = 18,204,514,191.82/156,117.90
  6. Step 6: Final answer
    x = 116,607.48

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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.