Home / 156,160.85-215,502.22-84,541.15

Finding the Fourth Proportional to 156,160.85, 215,502.22 and 84,541.15

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Solution

The fourth proportional to 156,160.85, 215,502.22 and 84,541.15 is: 116,666.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,160.85 : 215,502.22 = 84,541.15 : x
  2. Step 2: Convert to fraction form
    156,160.85/215,502.22 = 84,541.15/x
  3. Step 3: Cross multiply
    156,160.85x = 215,502.22 × 84,541.15
  4. Step 4: Simplify right side
    156,160.85x = 18,218,805,881.41
  5. Step 5: Solve for x
    x = 18,218,805,881.41/156,160.85
  6. Step 6: Final answer
    x = 116,666.93

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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.