Home / 188,389.28-282,540.08-70,116.32

Finding the Fourth Proportional to 188,389.28, 282,540.08 and 70,116.32

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Solution

The fourth proportional to 188,389.28, 282,540.08 and 70,116.32 is: 105,158.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,389.28 : 282,540.08 = 70,116.32 : x
  2. Step 2: Convert to fraction form
    188,389.28/282,540.08 = 70,116.32/x
  3. Step 3: Cross multiply
    188,389.28x = 282,540.08 × 70,116.32
  4. Step 4: Simplify right side
    188,389.28x = 19,810,670,662.11
  5. Step 5: Solve for x
    x = 19,810,670,662.11/188,389.28
  6. Step 6: Final answer
    x = 105,158.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.