Home / 112,568.87-155,346.27-61,580.51

Finding the Fourth Proportional to 112,568.87, 155,346.27 and 61,580.51

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Solution

The fourth proportional to 112,568.87, 155,346.27 and 61,580.51 is: 84,981.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,568.87 : 155,346.27 = 61,580.51 : x
  2. Step 2: Convert to fraction form
    112,568.87/155,346.27 = 61,580.51/x
  3. Step 3: Cross multiply
    112,568.87x = 155,346.27 × 61,580.51
  4. Step 4: Simplify right side
    112,568.87x = 9,566,301,844.37
  5. Step 5: Solve for x
    x = 9,566,301,844.37/112,568.87
  6. Step 6: Final answer
    x = 84,981.77

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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.