Home / 120,619.04-181,012.80-49,547.12

Finding the Fourth Proportional to 120,619.04, 181,012.80 and 49,547.12

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Solution

The fourth proportional to 120,619.04, 181,012.80 and 49,547.12 is: 74,355.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,619.04 : 181,012.80 = 49,547.12 : x
  2. Step 2: Convert to fraction form
    120,619.04/181,012.80 = 49,547.12/x
  3. Step 3: Cross multiply
    120,619.04x = 181,012.80 × 49,547.12
  4. Step 4: Simplify right side
    120,619.04x = 8,968,662,923.14
  5. Step 5: Solve for x
    x = 8,968,662,923.14/120,619.04
  6. Step 6: Final answer
    x = 74,355.28

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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.