Home / 103,079,047.76-154,282,119.48-75,778,112.72

Finding the Fourth Proportional to 103,079,047.76, 154,282,119.48 and 75,778,112.72

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Solution

The fourth proportional to 103,079,047.76, 154,282,119.48 and 75,778,112.72 is: 113,419,827.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,079,047.76 : 154,282,119.48 = 75,778,112.72 : x
  2. Step 2: Convert to fraction form
    103,079,047.76/154,282,119.48 = 75,778,112.72/x
  3. Step 3: Cross multiply
    103,079,047.76x = 154,282,119.48 × 75,778,112.72
  4. Step 4: Simplify right side
    103,079,047.76x = 11,691,207,840,635,946
  5. Step 5: Solve for x
    x = 11,691,207,840,635,946/103,079,047.76
  6. Step 6: Final answer
    x = 113,419,827.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.