Home / 139,907.07-193,071.42-76,244.76

Finding the Fourth Proportional to 139,907.07, 193,071.42 and 76,244.76

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Solution

The fourth proportional to 139,907.07, 193,071.42 and 76,244.76 is: 105,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,907.07 : 193,071.42 = 76,244.76 : x
  2. Step 2: Convert to fraction form
    139,907.07/193,071.42 = 76,244.76/x
  3. Step 3: Cross multiply
    139,907.07x = 193,071.42 × 76,244.76
  4. Step 4: Simplify right side
    139,907.07x = 14,720,684,080.76
  5. Step 5: Solve for x
    x = 14,720,684,080.76/139,907.07
  6. Step 6: Final answer
    x = 105,217.59

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1.5x scale

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.