Home / 130,419.67-179,981.01-75,970.44

Finding the Fourth Proportional to 130,419.67, 179,981.01 and 75,970.44

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Solution

The fourth proportional to 130,419.67, 179,981.01 and 75,970.44 is: 104,840.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,419.67 : 179,981.01 = 75,970.44 : x
  2. Step 2: Convert to fraction form
    130,419.67/179,981.01 = 75,970.44/x
  3. Step 3: Cross multiply
    130,419.67x = 179,981.01 × 75,970.44
  4. Step 4: Simplify right side
    130,419.67x = 13,673,236,521.34
  5. Step 5: Solve for x
    x = 13,673,236,521.34/130,419.67
  6. Step 6: Final answer
    x = 104,840.29

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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.