Home / 135,413.55-186,870.87-74,159.46

Finding the Fourth Proportional to 135,413.55, 186,870.87 and 74,159.46

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Solution

The fourth proportional to 135,413.55, 186,870.87 and 74,159.46 is: 102,340.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,413.55 : 186,870.87 = 74,159.46 : x
  2. Step 2: Convert to fraction form
    135,413.55/186,870.87 = 74,159.46/x
  3. Step 3: Cross multiply
    135,413.55x = 186,870.87 × 74,159.46
  4. Step 4: Simplify right side
    135,413.55x = 13,858,242,808.93
  5. Step 5: Solve for x
    x = 13,858,242,808.93/135,413.55
  6. Step 6: Final answer
    x = 102,340.15

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1.5x scale

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.