Home / 109,712.46-151,413.93-66,688.19

Finding the Fourth Proportional to 109,712.46, 151,413.93 and 66,688.19

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Solution

The fourth proportional to 109,712.46, 151,413.93 and 66,688.19 is: 92,036.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,712.46 : 151,413.93 = 66,688.19 : x
  2. Step 2: Convert to fraction form
    109,712.46/151,413.93 = 66,688.19/x
  3. Step 3: Cross multiply
    109,712.46x = 151,413.93 × 66,688.19
  4. Step 4: Simplify right side
    109,712.46x = 10,097,520,175.42
  5. Step 5: Solve for x
    x = 10,097,520,175.42/109,712.46
  6. Step 6: Final answer
    x = 92,036.22

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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.