Home / 122,501.07-169,068.96-68,789.75

Finding the Fourth Proportional to 122,501.07, 169,068.96 and 68,789.75

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Solution

The fourth proportional to 122,501.07, 169,068.96 and 68,789.75 is: 94,939.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,501.07 : 169,068.96 = 68,789.75 : x
  2. Step 2: Convert to fraction form
    122,501.07/169,068.96 = 68,789.75/x
  3. Step 3: Cross multiply
    122,501.07x = 169,068.96 × 68,789.75
  4. Step 4: Simplify right side
    122,501.07x = 11,630,210,645.82
  5. Step 5: Solve for x
    x = 11,630,210,645.82/122,501.07
  6. Step 6: Final answer
    x = 94,939.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.