Home / 152,413.76-210,403.92-101,511.20

Finding the Fourth Proportional to 152,413.76, 210,403.92 and 101,511.20

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Solution

The fourth proportional to 152,413.76, 210,403.92 and 101,511.20 is: 140,134.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,413.76 : 210,403.92 = 101,511.20 : x
  2. Step 2: Convert to fraction form
    152,413.76/210,403.92 = 101,511.20/x
  3. Step 3: Cross multiply
    152,413.76x = 210,403.92 × 101,511.20
  4. Step 4: Simplify right side
    152,413.76x = 21,358,354,403.90
  5. Step 5: Solve for x
    x = 21,358,354,403.90/152,413.76
  6. Step 6: Final answer
    x = 140,134.03

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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.