Home / 180,965.05-249,732.06-100,392.57

Finding the Fourth Proportional to 180,965.05, 249,732.06 and 100,392.57

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Solution

The fourth proportional to 180,965.05, 249,732.06 and 100,392.57 is: 138,541.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,965.05 : 249,732.06 = 100,392.57 : x
  2. Step 2: Convert to fraction form
    180,965.05/249,732.06 = 100,392.57/x
  3. Step 3: Cross multiply
    180,965.05x = 249,732.06 × 100,392.57
  4. Step 4: Simplify right side
    180,965.05x = 25,071,243,314.79
  5. Step 5: Solve for x
    x = 25,071,243,314.79/180,965.05
  6. Step 6: Final answer
    x = 138,541.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.