Home / 112,103,990.80-168,155,986.20-68,832,883.60

Finding the Fourth Proportional to 112,103,990.80, 168,155,986.20 and 68,832,883.60

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Solution

The fourth proportional to 112,103,990.80, 168,155,986.20 and 68,832,883.60 is: 103,249,325.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,103,990.80 : 168,155,986.20 = 68,832,883.60 : x
  2. Step 2: Convert to fraction form
    112,103,990.80/168,155,986.20 = 68,832,883.60/x
  3. Step 3: Cross multiply
    112,103,990.80x = 168,155,986.20 × 68,832,883.60
  4. Step 4: Simplify right side
    112,103,990.80x = 11,574,661,424,747,804
  5. Step 5: Solve for x
    x = 11,574,661,424,747,804/112,103,990.80
  6. Step 6: Final answer
    x = 103,249,325.40

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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.