Home / 156,857.18-216,445.32-88,859.58

Finding the Fourth Proportional to 156,857.18, 216,445.32 and 88,859.58

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Solution

The fourth proportional to 156,857.18, 216,445.32 and 88,859.58 is: 122,616.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,857.18 : 216,445.32 = 88,859.58 : x
  2. Step 2: Convert to fraction form
    156,857.18/216,445.32 = 88,859.58/x
  3. Step 3: Cross multiply
    156,857.18x = 216,445.32 × 88,859.58
  4. Step 4: Simplify right side
    156,857.18x = 19,233,240,228.17
  5. Step 5: Solve for x
    x = 19,233,240,228.17/156,857.18
  6. Step 6: Final answer
    x = 122,616.26

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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.