Home / 121,805.20-182,448.60-98,477.20

Finding the Fourth Proportional to 121,805.20, 182,448.60 and 98,477.20

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Solution

The fourth proportional to 121,805.20, 182,448.60 and 98,477.20 is: 147,506.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,805.20 : 182,448.60 = 98,477.20 : x
  2. Step 2: Convert to fraction form
    121,805.20/182,448.60 = 98,477.20/x
  3. Step 3: Cross multiply
    121,805.20x = 182,448.60 × 98,477.20
  4. Step 4: Simplify right side
    121,805.20x = 17,967,027,271.92
  5. Step 5: Solve for x
    x = 17,967,027,271.92/121,805.20
  6. Step 6: Final answer
    x = 147,506.24

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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.