Home / 158,905.35-219,235.07-90,897.55

Finding the Fourth Proportional to 158,905.35, 219,235.07 and 90,897.55

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Solution

The fourth proportional to 158,905.35, 219,235.07 and 90,897.55 is: 125,407.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,905.35 : 219,235.07 = 90,897.55 : x
  2. Step 2: Convert to fraction form
    158,905.35/219,235.07 = 90,897.55/x
  3. Step 3: Cross multiply
    158,905.35x = 219,235.07 × 90,897.55
  4. Step 4: Simplify right side
    158,905.35x = 19,927,929,186.42
  5. Step 5: Solve for x
    x = 19,927,929,186.42/158,905.35
  6. Step 6: Final answer
    x = 125,407.54

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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.