Home / 156,989.72-216,639.22-89,011.26

Finding the Fourth Proportional to 156,989.72, 216,639.22 and 89,011.26

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Solution

The fourth proportional to 156,989.72, 216,639.22 and 89,011.26 is: 122,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,989.72 : 216,639.22 = 89,011.26 : x
  2. Step 2: Convert to fraction form
    156,989.72/216,639.22 = 89,011.26/x
  3. Step 3: Cross multiply
    156,989.72x = 216,639.22 × 89,011.26
  4. Step 4: Simplify right side
    156,989.72x = 19,283,329,937.62
  5. Step 5: Solve for x
    x = 19,283,329,937.62/156,989.72
  6. Step 6: Final answer
    x = 122,831.80

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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.