Home / 144,541.12-216,653.52-74,424.64

Finding the Fourth Proportional to 144,541.12, 216,653.52 and 74,424.64

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Solution

The fourth proportional to 144,541.12, 216,653.52 and 74,424.64 is: 111,555.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,541.12 : 216,653.52 = 74,424.64 : x
  2. Step 2: Convert to fraction form
    144,541.12/216,653.52 = 74,424.64/x
  3. Step 3: Cross multiply
    144,541.12x = 216,653.52 × 74,424.64
  4. Step 4: Simplify right side
    144,541.12x = 16,124,360,230.73
  5. Step 5: Solve for x
    x = 16,124,360,230.73/144,541.12
  6. Step 6: Final answer
    x = 111,555.52

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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.