Home / 147,398.40-221,043.20-52,603.22

Finding the Fourth Proportional to 147,398.40, 221,043.20 and 52,603.22

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Solution

The fourth proportional to 147,398.40, 221,043.20 and 52,603.22 is: 78,885.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,398.40 : 221,043.20 = 52,603.22 : x
  2. Step 2: Convert to fraction form
    147,398.40/221,043.20 = 52,603.22/x
  3. Step 3: Cross multiply
    147,398.40x = 221,043.20 × 52,603.22
  4. Step 4: Simplify right side
    147,398.40x = 11,627,582,710.87
  5. Step 5: Solve for x
    x = 11,627,582,710.87/147,398.40
  6. Step 6: Final answer
    x = 78,885.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.