Home / 117,688.90-162,413.84-63,977.52

Finding the Fourth Proportional to 117,688.90, 162,413.84 and 63,977.52

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Solution

The fourth proportional to 117,688.90, 162,413.84 and 63,977.52 is: 88,290.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,688.90 : 162,413.84 = 63,977.52 : x
  2. Step 2: Convert to fraction form
    117,688.90/162,413.84 = 63,977.52/x
  3. Step 3: Cross multiply
    117,688.90x = 162,413.84 × 63,977.52
  4. Step 4: Simplify right side
    117,688.90x = 10,390,834,696.88
  5. Step 5: Solve for x
    x = 10,390,834,696.88/117,688.90
  6. Step 6: Final answer
    x = 88,290.69

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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.