Home / 142,395.80-196,413.61-91,327.64

Finding the Fourth Proportional to 142,395.80, 196,413.61 and 91,327.64

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Solution

The fourth proportional to 142,395.80, 196,413.61 and 91,327.64 is: 125,972.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,395.80 : 196,413.61 = 91,327.64 : x
  2. Step 2: Convert to fraction form
    142,395.80/196,413.61 = 91,327.64/x
  3. Step 3: Cross multiply
    142,395.80x = 196,413.61 × 91,327.64
  4. Step 4: Simplify right side
    142,395.80x = 17,937,991,465.18
  5. Step 5: Solve for x
    x = 17,937,991,465.18/142,395.80
  6. Step 6: Final answer
    x = 125,972.76

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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.