Home / 157,209.12-216,878.48-106,205.44

Finding the Fourth Proportional to 157,209.12, 216,878.48 and 106,205.44

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Solution

The fourth proportional to 157,209.12, 216,878.48 and 106,205.44 is: 146,516.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,209.12 : 216,878.48 = 106,205.44 : x
  2. Step 2: Convert to fraction form
    157,209.12/216,878.48 = 106,205.44/x
  3. Step 3: Cross multiply
    157,209.12x = 216,878.48 × 106,205.44
  4. Step 4: Simplify right side
    157,209.12x = 23,033,674,394.93
  5. Step 5: Solve for x
    x = 23,033,674,394.93/157,209.12
  6. Step 6: Final answer
    x = 146,516.15

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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.