Home / 139,733.10-192,836.07-76,075.02

Finding the Fourth Proportional to 139,733.10, 192,836.07 and 76,075.02

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Solution

The fourth proportional to 139,733.10, 192,836.07 and 76,075.02 is: 104,985.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,733.10 : 192,836.07 = 76,075.02 : x
  2. Step 2: Convert to fraction form
    139,733.10/192,836.07 = 76,075.02/x
  3. Step 3: Cross multiply
    139,733.10x = 192,836.07 × 76,075.02
  4. Step 4: Simplify right side
    139,733.10x = 14,670,007,881.97
  5. Step 5: Solve for x
    x = 14,670,007,881.97/139,733.10
  6. Step 6: Final answer
    x = 104,985.92

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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.