Home / 139,094.22-191,948.34-75,431.26

Finding the Fourth Proportional to 139,094.22, 191,948.34 and 75,431.26

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Solution

The fourth proportional to 139,094.22, 191,948.34 and 75,431.26 is: 104,094.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,094.22 : 191,948.34 = 75,431.26 : x
  2. Step 2: Convert to fraction form
    139,094.22/191,948.34 = 75,431.26/x
  3. Step 3: Cross multiply
    139,094.22x = 191,948.34 × 75,431.26
  4. Step 4: Simplify right side
    139,094.22x = 14,478,905,141.11
  5. Step 5: Solve for x
    x = 14,478,905,141.11/139,094.22
  6. Step 6: Final answer
    x = 104,094.23

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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.