Home / 112,785.19-169,164.62-45,314.51

Finding the Fourth Proportional to 112,785.19, 169,164.62 and 45,314.51

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Solution

The fourth proportional to 112,785.19, 169,164.62 and 45,314.51 is: 67,966.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,785.19 : 169,164.62 = 45,314.51 : x
  2. Step 2: Convert to fraction form
    112,785.19/169,164.62 = 45,314.51/x
  3. Step 3: Cross multiply
    112,785.19x = 169,164.62 × 45,314.51
  4. Step 4: Simplify right side
    112,785.19x = 7,665,610,792.24
  5. Step 5: Solve for x
    x = 7,665,610,792.24/112,785.19
  6. Step 6: Final answer
    x = 67,966.47

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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.