Home / 145,413.46-218,236.83-75,312.82

Finding the Fourth Proportional to 145,413.46, 218,236.83 and 75,312.82

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Solution

The fourth proportional to 145,413.46, 218,236.83 and 75,312.82 is: 113,029.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,413.46 : 218,236.83 = 75,312.82 : x
  2. Step 2: Convert to fraction form
    145,413.46/218,236.83 = 75,312.82/x
  3. Step 3: Cross multiply
    145,413.46x = 218,236.83 × 75,312.82
  4. Step 4: Simplify right side
    145,413.46x = 16,436,031,095.16
  5. Step 5: Solve for x
    x = 16,436,031,095.16/145,413.46
  6. Step 6: Final answer
    x = 113,029.64

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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.