Home / 167,557.18-251,417.76-78,819.64

Finding the Fourth Proportional to 167,557.18, 251,417.76 and 78,819.64

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Solution

The fourth proportional to 167,557.18, 251,417.76 and 78,819.64 is: 118,268.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,557.18 : 251,417.76 = 78,819.64 : x
  2. Step 2: Convert to fraction form
    167,557.18/251,417.76 = 78,819.64/x
  3. Step 3: Cross multiply
    167,557.18x = 251,417.76 × 78,819.64
  4. Step 4: Simplify right side
    167,557.18x = 19,816,657,332.81
  5. Step 5: Solve for x
    x = 19,816,657,332.81/167,557.18
  6. Step 6: Final answer
    x = 118,268.03

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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.