Home / 102,721,288.66-141,754,858.60-55,678,172.66

Finding the Fourth Proportional to 102,721,288.66, 141,754,858.60 and 55,678,172.66

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Solution

The fourth proportional to 102,721,288.66, 141,754,858.60 and 55,678,172.66 is: 76,835,596.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,721,288.66 : 141,754,858.60 = 55,678,172.66 : x
  2. Step 2: Convert to fraction form
    102,721,288.66/141,754,858.60 = 55,678,172.66/x
  3. Step 3: Cross multiply
    102,721,288.66x = 141,754,858.60 × 55,678,172.66
  4. Step 4: Simplify right side
    102,721,288.66x = 7,892,651,492,524,685
  5. Step 5: Solve for x
    x = 7,892,651,492,524,685/102,721,288.66
  6. Step 6: Final answer
    x = 76,835,596.55

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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.