Home / 107,989.14-148,955.62-65,547.67

Finding the Fourth Proportional to 107,989.14, 148,955.62 and 65,547.67

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Solution

The fourth proportional to 107,989.14, 148,955.62 and 65,547.67 is: 90,413.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,989.14 : 148,955.62 = 65,547.67 : x
  2. Step 2: Convert to fraction form
    107,989.14/148,955.62 = 65,547.67/x
  3. Step 3: Cross multiply
    107,989.14x = 148,955.62 × 65,547.67
  4. Step 4: Simplify right side
    107,989.14x = 9,763,693,452.02
  5. Step 5: Solve for x
    x = 9,763,693,452.02/107,989.14
  6. Step 6: Final answer
    x = 90,413.66

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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.