Home / 156,719.45-235,114.64-51,539.33

Finding the Fourth Proportional to 156,719.45, 235,114.64 and 51,539.33

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Solution

The fourth proportional to 156,719.45, 235,114.64 and 51,539.33 is: 77,320.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,719.45 : 235,114.64 = 51,539.33 : x
  2. Step 2: Convert to fraction form
    156,719.45/235,114.64 = 51,539.33/x
  3. Step 3: Cross multiply
    156,719.45x = 235,114.64 × 51,539.33
  4. Step 4: Simplify right side
    156,719.45x = 12,117,651,018.79
  5. Step 5: Solve for x
    x = 12,117,651,018.79/156,719.45
  6. Step 6: Final answer
    x = 77,320.66

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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.