Home / 90,002.20-135,003.30-73,413.40

Finding the Fourth Proportional to 90,002.20, 135,003.30 and 73,413.40

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Solution

The fourth proportional to 90,002.20, 135,003.30 and 73,413.40 is: 110,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,002.20 : 135,003.30 = 73,413.40 : x
  2. Step 2: Convert to fraction form
    90,002.20/135,003.30 = 73,413.40/x
  3. Step 3: Cross multiply
    90,002.20x = 135,003.30 × 73,413.40
  4. Step 4: Simplify right side
    90,002.20x = 9,911,051,264.22
  5. Step 5: Solve for x
    x = 9,911,051,264.22/90,002.20
  6. Step 6: Final answer
    x = 110,120.10

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1.5x scale

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.