Home / 158,086,890-218,159,908.20-85,735,146

Finding the Fourth Proportional to 158,086,890, 218,159,908.20 and 85,735,146

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Solution

The fourth proportional to 158,086,890, 218,159,908.20 and 85,735,146 is: 118,314,501.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,086,890 : 218,159,908.20 = 85,735,146 : x
  2. Step 2: Convert to fraction form
    158,086,890/218,159,908.20 = 85,735,146/x
  3. Step 3: Cross multiply
    158,086,890x = 218,159,908.20 × 85,735,146
  4. Step 4: Simplify right side
    158,086,890x = 18,703,971,580,873,596
  5. Step 5: Solve for x
    x = 18,703,971,580,873,596/158,086,890
  6. Step 6: Final answer
    x = 118,314,501.48

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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.