Home / 156,782.78-235,124.49-51,577.28

Finding the Fourth Proportional to 156,782.78, 235,124.49 and 51,577.28

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Solution

The fourth proportional to 156,782.78, 235,124.49 and 51,577.28 is: 77,349.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,782.78 : 235,124.49 = 51,577.28 : x
  2. Step 2: Convert to fraction form
    156,782.78/235,124.49 = 51,577.28/x
  3. Step 3: Cross multiply
    156,782.78x = 235,124.49 × 51,577.28
  4. Step 4: Simplify right side
    156,782.78x = 12,127,081,655.59
  5. Step 5: Solve for x
    x = 12,127,081,655.59/156,782.78
  6. Step 6: Final answer
    x = 77,349.58

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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.