Home / 114,256.56-171,161.64-78,711.60

Finding the Fourth Proportional to 114,256.56, 171,161.64 and 78,711.60

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Solution

The fourth proportional to 114,256.56, 171,161.64 and 78,711.60 is: 117,913.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,256.56 : 171,161.64 = 78,711.60 : x
  2. Step 2: Convert to fraction form
    114,256.56/171,161.64 = 78,711.60/x
  3. Step 3: Cross multiply
    114,256.56x = 171,161.64 × 78,711.60
  4. Step 4: Simplify right side
    114,256.56x = 13,472,406,543.02
  5. Step 5: Solve for x
    x = 13,472,406,543.02/114,256.56
  6. Step 6: Final answer
    x = 117,913.64

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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.