Home / 145,413.02-218,119.23-40,231.69

Finding the Fourth Proportional to 145,413.02, 218,119.23 and 40,231.69

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Solution

The fourth proportional to 145,413.02, 218,119.23 and 40,231.69 is: 60,347.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,413.02 : 218,119.23 = 40,231.69 : x
  2. Step 2: Convert to fraction form
    145,413.02/218,119.23 = 40,231.69/x
  3. Step 3: Cross multiply
    145,413.02x = 218,119.23 × 40,231.69
  4. Step 4: Simplify right side
    145,413.02x = 8,775,304,699.10
  5. Step 5: Solve for x
    x = 8,775,304,699.10/145,413.02
  6. Step 6: Final answer
    x = 60,347.45

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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.