Home / 188,429.12-260,033.64-103,547.60

Finding the Fourth Proportional to 188,429.12, 260,033.64 and 103,547.60

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Solution

The fourth proportional to 188,429.12, 260,033.64 and 103,547.60 is: 142,896.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,429.12 : 260,033.64 = 103,547.60 : x
  2. Step 2: Convert to fraction form
    188,429.12/260,033.64 = 103,547.60/x
  3. Step 3: Cross multiply
    188,429.12x = 260,033.64 × 103,547.60
  4. Step 4: Simplify right side
    188,429.12x = 26,925,859,341.26
  5. Step 5: Solve for x
    x = 26,925,859,341.26/188,429.12
  6. Step 6: Final answer
    x = 142,896.49

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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.