Home / 117,688.40-162,413.54-66,701.23

Finding the Fourth Proportional to 117,688.40, 162,413.54 and 66,701.23

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Solution

The fourth proportional to 117,688.40, 162,413.54 and 66,701.23 is: 92,049.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,688.40 : 162,413.54 = 66,701.23 : x
  2. Step 2: Convert to fraction form
    117,688.40/162,413.54 = 66,701.23/x
  3. Step 3: Cross multiply
    117,688.40x = 162,413.54 × 66,701.23
  4. Step 4: Simplify right side
    117,688.40x = 10,833,182,886.65
  5. Step 5: Solve for x
    x = 10,833,182,886.65/117,688.40
  6. Step 6: Final answer
    x = 92,049.71

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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.