Home / 145,480.80-218,124-117,435.36

Finding the Fourth Proportional to 145,480.80, 218,124 and 117,435.36

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Solution

The fourth proportional to 145,480.80, 218,124 and 117,435.36 is: 176,074.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,480.80 : 218,124 = 117,435.36 : x
  2. Step 2: Convert to fraction form
    145,480.80/218,124 = 117,435.36/x
  3. Step 3: Cross multiply
    145,480.80x = 218,124 × 117,435.36
  4. Step 4: Simplify right side
    145,480.80x = 25,615,470,464.64
  5. Step 5: Solve for x
    x = 25,615,470,464.64/145,480.80
  6. Step 6: Final answer
    x = 176,074.58

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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.