Home / 156,569.42-215,767.50-153,690.41

Finding the Fourth Proportional to 156,569.42, 215,767.50 and 153,690.41

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Solution

The fourth proportional to 156,569.42, 215,767.50 and 153,690.41 is: 211,799.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,569.42 : 215,767.50 = 153,690.41 : x
  2. Step 2: Convert to fraction form
    156,569.42/215,767.50 = 153,690.41/x
  3. Step 3: Cross multiply
    156,569.42x = 215,767.50 × 153,690.41
  4. Step 4: Simplify right side
    156,569.42x = 33,161,395,502.75
  5. Step 5: Solve for x
    x = 33,161,395,502.75/156,569.42
  6. Step 6: Final answer
    x = 211,799.95

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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.