Home / 155,611.07-214,746.06-91,948.73

Finding the Fourth Proportional to 155,611.07, 214,746.06 and 91,948.73

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Solution

The fourth proportional to 155,611.07, 214,746.06 and 91,948.73 is: 126,890.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,611.07 : 214,746.06 = 91,948.73 : x
  2. Step 2: Convert to fraction form
    155,611.07/214,746.06 = 91,948.73/x
  3. Step 3: Cross multiply
    155,611.07x = 214,746.06 × 91,948.73
  4. Step 4: Simplify right side
    155,611.07x = 19,745,627,489.50
  5. Step 5: Solve for x
    x = 19,745,627,489.50/155,611.07
  6. Step 6: Final answer
    x = 126,890.89

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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.