Home / 103,876,214.40-155,609,035.20-91,111,132.80

Finding the Fourth Proportional to 103,876,214.40, 155,609,035.20 and 91,111,132.80

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Solution

The fourth proportional to 103,876,214.40, 155,609,035.20 and 91,111,132.80 is: 136,486,639.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,876,214.40 : 155,609,035.20 = 91,111,132.80 : x
  2. Step 2: Convert to fraction form
    103,876,214.40/155,609,035.20 = 91,111,132.80/x
  3. Step 3: Cross multiply
    103,876,214.40x = 155,609,035.20 × 91,111,132.80
  4. Step 4: Simplify right side
    103,876,214.40x = 14,177,715,470,987,074
  5. Step 5: Solve for x
    x = 14,177,715,470,987,074/103,876,214.40
  6. Step 6: Final answer
    x = 136,486,639.92

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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.