Home / 105,197,114.80-157,795,672.20-79,687,946.80

Finding the Fourth Proportional to 105,197,114.80, 157,795,672.20 and 79,687,946.80

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Solution

The fourth proportional to 105,197,114.80, 157,795,672.20 and 79,687,946.80 is: 119,531,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,197,114.80 : 157,795,672.20 = 79,687,946.80 : x
  2. Step 2: Convert to fraction form
    105,197,114.80/157,795,672.20 = 79,687,946.80/x
  3. Step 3: Cross multiply
    105,197,114.80x = 157,795,672.20 × 79,687,946.80
  4. Step 4: Simplify right side
    105,197,114.80x = 12,574,413,131,543,838
  5. Step 5: Solve for x
    x = 12,574,413,131,543,838/105,197,114.80
  6. Step 6: Final answer
    x = 119,531,920.20

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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.