Home / 145,609.14-218,413.56-45,778.06

Finding the Fourth Proportional to 145,609.14, 218,413.56 and 45,778.06

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Solution

The fourth proportional to 145,609.14, 218,413.56 and 45,778.06 is: 68,667.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,609.14 : 218,413.56 = 45,778.06 : x
  2. Step 2: Convert to fraction form
    145,609.14/218,413.56 = 45,778.06/x
  3. Step 3: Cross multiply
    145,609.14x = 218,413.56 × 45,778.06
  4. Step 4: Simplify right side
    145,609.14x = 9,998,547,733.54
  5. Step 5: Solve for x
    x = 9,998,547,733.54/145,609.14
  6. Step 6: Final answer
    x = 68,667.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.