Home / 106,731.58-147,285.75-64,281.82

Finding the Fourth Proportional to 106,731.58, 147,285.75 and 64,281.82

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Solution

The fourth proportional to 106,731.58, 147,285.75 and 64,281.82 is: 88,706.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,731.58 : 147,285.75 = 64,281.82 : x
  2. Step 2: Convert to fraction form
    106,731.58/147,285.75 = 64,281.82/x
  3. Step 3: Cross multiply
    106,731.58x = 147,285.75 × 64,281.82
  4. Step 4: Simplify right side
    106,731.58x = 9,467,796,070.07
  5. Step 5: Solve for x
    x = 9,467,796,070.07/106,731.58
  6. Step 6: Final answer
    x = 88,706.60

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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.