Home / 156,588.96-216,012.24-99,130.80

Finding the Fourth Proportional to 156,588.96, 216,012.24 and 99,130.80

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Solution

The fourth proportional to 156,588.96, 216,012.24 and 99,130.80 is: 136,749.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,588.96 : 216,012.24 = 99,130.80 : x
  2. Step 2: Convert to fraction form
    156,588.96/216,012.24 = 99,130.80/x
  3. Step 3: Cross multiply
    156,588.96x = 216,012.24 × 99,130.80
  4. Step 4: Simplify right side
    156,588.96x = 21,413,466,160.99
  5. Step 5: Solve for x
    x = 21,413,466,160.99/156,588.96
  6. Step 6: Final answer
    x = 136,749.53

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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.