Home / 188,005.16-259,459.47-103,122.23

Finding the Fourth Proportional to 188,005.16, 259,459.47 and 103,122.23

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Solution

The fourth proportional to 188,005.16, 259,459.47 and 103,122.23 is: 142,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,005.16 : 259,459.47 = 103,122.23 : x
  2. Step 2: Convert to fraction form
    188,005.16/259,459.47 = 103,122.23/x
  3. Step 3: Cross multiply
    188,005.16x = 259,459.47 × 103,122.23
  4. Step 4: Simplify right side
    188,005.16x = 26,756,039,141.02
  5. Step 5: Solve for x
    x = 26,756,039,141.02/188,005.16
  6. Step 6: Final answer
    x = 142,315.45

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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.