Home / 122,942.61-169,642.76-69,216.93

Finding the Fourth Proportional to 122,942.61, 169,642.76 and 69,216.93

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Solution

The fourth proportional to 122,942.61, 169,642.76 and 69,216.93 is: 95,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,942.61 : 169,642.76 = 69,216.93 : x
  2. Step 2: Convert to fraction form
    122,942.61/169,642.76 = 69,216.93/x
  3. Step 3: Cross multiply
    122,942.61x = 169,642.76 × 69,216.93
  4. Step 4: Simplify right side
    122,942.61x = 11,742,150,697.84
  5. Step 5: Solve for x
    x = 11,742,150,697.84/122,942.61
  6. Step 6: Final answer
    x = 95,509.20

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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.