Home / 156,730.14-216,435.21-109,113.69

Finding the Fourth Proportional to 156,730.14, 216,435.21 and 109,113.69

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Solution

The fourth proportional to 156,730.14, 216,435.21 and 109,113.69 is: 150,679.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,730.14 : 216,435.21 = 109,113.69 : x
  2. Step 2: Convert to fraction form
    156,730.14/216,435.21 = 109,113.69/x
  3. Step 3: Cross multiply
    156,730.14x = 216,435.21 × 109,113.69
  4. Step 4: Simplify right side
    156,730.14x = 23,616,044,409.02
  5. Step 5: Solve for x
    x = 23,616,044,409.02/156,730.14
  6. Step 6: Final answer
    x = 150,679.66

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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.