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Finding the Fourth Proportional to 142,777.44, 214,196.80 and 42,929.28

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Solution

The fourth proportional to 142,777.44, 214,196.80 and 42,929.28 is: 64,403.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,777.44 : 214,196.80 = 42,929.28 : x
  2. Step 2: Convert to fraction form
    142,777.44/214,196.80 = 42,929.28/x
  3. Step 3: Cross multiply
    142,777.44x = 214,196.80 × 42,929.28
  4. Step 4: Simplify right side
    142,777.44x = 9,195,314,402.30
  5. Step 5: Solve for x
    x = 9,195,314,402.30/142,777.44
  6. Step 6: Final answer
    x = 64,403.13

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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.