Home / 156,153.48-215,490.02-84,531.93

Finding the Fourth Proportional to 156,153.48, 215,490.02 and 84,531.93

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Solution

The fourth proportional to 156,153.48, 215,490.02 and 84,531.93 is: 116,653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,153.48 : 215,490.02 = 84,531.93 : x
  2. Step 2: Convert to fraction form
    156,153.48/215,490.02 = 84,531.93/x
  3. Step 3: Cross multiply
    156,153.48x = 215,490.02 × 84,531.93
  4. Step 4: Simplify right side
    156,153.48x = 18,215,786,863.68
  5. Step 5: Solve for x
    x = 18,215,786,863.68/156,153.48
  6. Step 6: Final answer
    x = 116,653.10

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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.