Home / 139,937.34-193,112.04-76,273.76

Finding the Fourth Proportional to 139,937.34, 193,112.04 and 76,273.76

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Solution

The fourth proportional to 139,937.34, 193,112.04 and 76,273.76 is: 105,256.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,937.34 : 193,112.04 = 76,273.76 : x
  2. Step 2: Convert to fraction form
    139,937.34/193,112.04 = 76,273.76/x
  3. Step 3: Cross multiply
    139,937.34x = 193,112.04 × 76,273.76
  4. Step 4: Simplify right side
    139,937.34x = 14,729,381,392.07
  5. Step 5: Solve for x
    x = 14,729,381,392.07/139,937.34
  6. Step 6: Final answer
    x = 105,256.98

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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.