Home / 145,632.10-218,479.35-82,482.07

Finding the Fourth Proportional to 145,632.10, 218,479.35 and 82,482.07

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Solution

The fourth proportional to 145,632.10, 218,479.35 and 82,482.07 is: 123,740.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,632.10 : 218,479.35 = 82,482.07 : x
  2. Step 2: Convert to fraction form
    145,632.10/218,479.35 = 82,482.07/x
  3. Step 3: Cross multiply
    145,632.10x = 218,479.35 × 82,482.07
  4. Step 4: Simplify right side
    145,632.10x = 18,020,629,040.25
  5. Step 5: Solve for x
    x = 18,020,629,040.25/145,632.10
  6. Step 6: Final answer
    x = 123,740.78

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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.