Home / 156,123.67-215,461.07-88,116.49

Finding the Fourth Proportional to 156,123.67, 215,461.07 and 88,116.49

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Solution

The fourth proportional to 156,123.67, 215,461.07 and 88,116.49 is: 121,606.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,123.67 : 215,461.07 = 88,116.49 : x
  2. Step 2: Convert to fraction form
    156,123.67/215,461.07 = 88,116.49/x
  3. Step 3: Cross multiply
    156,123.67x = 215,461.07 × 88,116.49
  4. Step 4: Simplify right side
    156,123.67x = 18,985,673,220.04
  5. Step 5: Solve for x
    x = 18,985,673,220.04/156,123.67
  6. Step 6: Final answer
    x = 121,606.63

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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.