Home / 188,519.60-260,157-103,642.16

Finding the Fourth Proportional to 188,519.60, 260,157 and 103,642.16

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Solution

The fourth proportional to 188,519.60, 260,157 and 103,642.16 is: 143,026.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,519.60 : 260,157 = 103,642.16 : x
  2. Step 2: Convert to fraction form
    188,519.60/260,157 = 103,642.16/x
  3. Step 3: Cross multiply
    188,519.60x = 260,157 × 103,642.16
  4. Step 4: Simplify right side
    188,519.60x = 26,963,233,419.12
  5. Step 5: Solve for x
    x = 26,963,233,419.12/188,519.60
  6. Step 6: Final answer
    x = 143,026.15

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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.