Home / 157,069.19-216,739.07-89,064.43

Finding the Fourth Proportional to 157,069.19, 216,739.07 and 89,064.43

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Solution

The fourth proportional to 157,069.19, 216,739.07 and 89,064.43 is: 122,899.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,069.19 : 216,739.07 = 89,064.43 : x
  2. Step 2: Convert to fraction form
    157,069.19/216,739.07 = 89,064.43/x
  3. Step 3: Cross multiply
    157,069.19x = 216,739.07 × 89,064.43
  4. Step 4: Simplify right side
    157,069.19x = 19,303,741,728.28
  5. Step 5: Solve for x
    x = 19,303,741,728.28/157,069.19
  6. Step 6: Final answer
    x = 122,899.61

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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.