Home / 153,790.46-211,989.15-105,308.58

Finding the Fourth Proportional to 153,790.46, 211,989.15 and 105,308.58

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Solution

The fourth proportional to 153,790.46, 211,989.15 and 105,308.58 is: 145,160.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,790.46 : 211,989.15 = 105,308.58 : x
  2. Step 2: Convert to fraction form
    153,790.46/211,989.15 = 105,308.58/x
  3. Step 3: Cross multiply
    153,790.46x = 211,989.15 × 105,308.58
  4. Step 4: Simplify right side
    153,790.46x = 22,324,276,361.91
  5. Step 5: Solve for x
    x = 22,324,276,361.91/153,790.46
  6. Step 6: Final answer
    x = 145,160.35

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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.