Home / 152,413.70-228,620.55-89,428.10

Finding the Fourth Proportional to 152,413.70, 228,620.55 and 89,428.10

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Solution

The fourth proportional to 152,413.70, 228,620.55 and 89,428.10 is: 134,142.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,413.70 : 228,620.55 = 89,428.10 : x
  2. Step 2: Convert to fraction form
    152,413.70/228,620.55 = 89,428.10/x
  3. Step 3: Cross multiply
    152,413.70x = 228,620.55 × 89,428.10
  4. Step 4: Simplify right side
    152,413.70x = 20,445,101,407.46
  5. Step 5: Solve for x
    x = 20,445,101,407.46/152,413.70
  6. Step 6: Final answer
    x = 134,142.15

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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.