Home / 156,981.93-216,630.46-89,005.17

Finding the Fourth Proportional to 156,981.93, 216,630.46 and 89,005.17

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Solution

The fourth proportional to 156,981.93, 216,630.46 and 89,005.17 is: 122,824.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,981.93 : 216,630.46 = 89,005.17 : x
  2. Step 2: Convert to fraction form
    156,981.93/216,630.46 = 89,005.17/x
  3. Step 3: Cross multiply
    156,981.93x = 216,630.46 × 89,005.17
  4. Step 4: Simplify right side
    156,981.93x = 19,281,230,919.48
  5. Step 5: Solve for x
    x = 19,281,230,919.48/156,981.93
  6. Step 6: Final answer
    x = 122,824.52

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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.