Home / 142,547.70-213,869.06-47,787.26

Finding the Fourth Proportional to 142,547.70, 213,869.06 and 47,787.26

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Solution

The fourth proportional to 142,547.70, 213,869.06 and 47,787.26 is: 71,696.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,547.70 : 213,869.06 = 47,787.26 : x
  2. Step 2: Convert to fraction form
    142,547.70/213,869.06 = 47,787.26/x
  3. Step 3: Cross multiply
    142,547.70x = 213,869.06 × 47,787.26
  4. Step 4: Simplify right side
    142,547.70x = 10,220,215,067.89
  5. Step 5: Solve for x
    x = 10,220,215,067.89/142,547.70
  6. Step 6: Final answer
    x = 71,696.81

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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.