Home / 156,142.49-234,140.56-56,289.47

Finding the Fourth Proportional to 156,142.49, 234,140.56 and 56,289.47

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Solution

The fourth proportional to 156,142.49, 234,140.56 and 56,289.47 is: 84,407.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,142.49 : 234,140.56 = 56,289.47 : x
  2. Step 2: Convert to fraction form
    156,142.49/234,140.56 = 56,289.47/x
  3. Step 3: Cross multiply
    156,142.49x = 234,140.56 × 56,289.47
  4. Step 4: Simplify right side
    156,142.49x = 13,179,646,716.48
  5. Step 5: Solve for x
    x = 13,179,646,716.48/156,142.49
  6. Step 6: Final answer
    x = 84,407.82

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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.