Home / 188,416.45-260,011.75-103,531.69

Finding the Fourth Proportional to 188,416.45, 260,011.75 and 103,531.69

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Solution

The fourth proportional to 188,416.45, 260,011.75 and 103,531.69 is: 142,872.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,416.45 : 260,011.75 = 103,531.69 : x
  2. Step 2: Convert to fraction form
    188,416.45/260,011.75 = 103,531.69/x
  3. Step 3: Cross multiply
    188,416.45x = 260,011.75 × 103,531.69
  4. Step 4: Simplify right side
    188,416.45x = 26,919,455,897.36
  5. Step 5: Solve for x
    x = 26,919,455,897.36/188,416.45
  6. Step 6: Final answer
    x = 142,872.11

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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.