Home / 118,413.14-163,403.06-64,687.46

Finding the Fourth Proportional to 118,413.14, 163,403.06 and 64,687.46

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Solution

The fourth proportional to 118,413.14, 163,403.06 and 64,687.46 is: 89,264.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,413.14 : 163,403.06 = 64,687.46 : x
  2. Step 2: Convert to fraction form
    118,413.14/163,403.06 = 64,687.46/x
  3. Step 3: Cross multiply
    118,413.14x = 163,403.06 × 64,687.46
  4. Step 4: Simplify right side
    118,413.14x = 10,570,127,767.18
  5. Step 5: Solve for x
    x = 10,570,127,767.18/118,413.14
  6. Step 6: Final answer
    x = 89,264.82

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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.