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Finding the Fourth Proportional to 123,444.99, 170,364.57 and 69,739.86

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Solution

The fourth proportional to 123,444.99, 170,364.57 and 69,739.86 is: 96,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,444.99 : 170,364.57 = 69,739.86 : x
  2. Step 2: Convert to fraction form
    123,444.99/170,364.57 = 69,739.86/x
  3. Step 3: Cross multiply
    123,444.99x = 170,364.57 × 69,739.86
  4. Step 4: Simplify right side
    123,444.99x = 11,881,201,260.76
  5. Step 5: Solve for x
    x = 11,881,201,260.76/123,444.99
  6. Step 6: Final answer
    x = 96,246.93

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1.5x scale

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.