Home / 144,889.20-217,441.80-74,732.40

Finding the Fourth Proportional to 144,889.20, 217,441.80 and 74,732.40

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Solution

The fourth proportional to 144,889.20, 217,441.80 and 74,732.40 is: 112,154.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,889.20 : 217,441.80 = 74,732.40 : x
  2. Step 2: Convert to fraction form
    144,889.20/217,441.80 = 74,732.40/x
  3. Step 3: Cross multiply
    144,889.20x = 217,441.80 × 74,732.40
  4. Step 4: Simplify right side
    144,889.20x = 16,249,947,574.32
  5. Step 5: Solve for x
    x = 16,249,947,574.32/144,889.20
  6. Step 6: Final answer
    x = 112,154.31

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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.