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Finding the Fourth Proportional to 147,430.88, 220,822.17 and 121,840.37

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Solution

The fourth proportional to 147,430.88, 220,822.17 and 121,840.37 is: 182,492.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,430.88 : 220,822.17 = 121,840.37 : x
  2. Step 2: Convert to fraction form
    147,430.88/220,822.17 = 121,840.37/x
  3. Step 3: Cross multiply
    147,430.88x = 220,822.17 × 121,840.37
  4. Step 4: Simplify right side
    147,430.88x = 26,905,055,753.66
  5. Step 5: Solve for x
    x = 26,905,055,753.66/147,430.88
  6. Step 6: Final answer
    x = 182,492.67

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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.