Home / 105,646,413.60-158,469,620.40-72,767,930.40

Finding the Fourth Proportional to 105,646,413.60, 158,469,620.40 and 72,767,930.40

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Solution

The fourth proportional to 105,646,413.60, 158,469,620.40 and 72,767,930.40 is: 109,151,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,646,413.60 : 158,469,620.40 = 72,767,930.40 : x
  2. Step 2: Convert to fraction form
    105,646,413.60/158,469,620.40 = 72,767,930.40/x
  3. Step 3: Cross multiply
    105,646,413.60x = 158,469,620.40 × 72,767,930.40
  4. Step 4: Simplify right side
    105,646,413.60x = 11,531,506,307,781,622
  5. Step 5: Solve for x
    x = 11,531,506,307,781,622/105,646,413.60
  6. Step 6: Final answer
    x = 109,151,895.60

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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.