Home / 112,907.02-155,818.58-65,163.44

Finding the Fourth Proportional to 112,907.02, 155,818.58 and 65,163.44

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Solution

The fourth proportional to 112,907.02, 155,818.58 and 65,163.44 is: 89,929.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,907.02 : 155,818.58 = 65,163.44 : x
  2. Step 2: Convert to fraction form
    112,907.02/155,818.58 = 65,163.44/x
  3. Step 3: Cross multiply
    112,907.02x = 155,818.58 × 65,163.44
  4. Step 4: Simplify right side
    112,907.02x = 10,153,674,688.72
  5. Step 5: Solve for x
    x = 10,153,674,688.72/112,907.02
  6. Step 6: Final answer
    x = 89,929.53

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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.