Home / 98,413.47-135,875.95-75,712.41

Finding the Fourth Proportional to 98,413.47, 135,875.95 and 75,712.41

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Solution

The fourth proportional to 98,413.47, 135,875.95 and 75,712.41 is: 104,533.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,413.47 : 135,875.95 = 75,712.41 : x
  2. Step 2: Convert to fraction form
    98,413.47/135,875.95 = 75,712.41/x
  3. Step 3: Cross multiply
    98,413.47x = 135,875.95 × 75,712.41
  4. Step 4: Simplify right side
    98,413.47x = 10,287,495,635.54
  5. Step 5: Solve for x
    x = 10,287,495,635.54/98,413.47
  6. Step 6: Final answer
    x = 104,533.41

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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.