Home / 188,648.09-260,328.93-103,765.16

Finding the Fourth Proportional to 188,648.09, 260,328.93 and 103,765.16

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Solution

The fourth proportional to 188,648.09, 260,328.93 and 103,765.16 is: 143,192.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,648.09 : 260,328.93 = 103,765.16 : x
  2. Step 2: Convert to fraction form
    188,648.09/260,328.93 = 103,765.16/x
  3. Step 3: Cross multiply
    188,648.09x = 260,328.93 × 103,765.16
  4. Step 4: Simplify right side
    188,648.09x = 27,013,071,772.43
  5. Step 5: Solve for x
    x = 27,013,071,772.43/188,648.09
  6. Step 6: Final answer
    x = 143,192.93

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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.