Home / 142,040.78-213,068.51-134,858.04

Finding the Fourth Proportional to 142,040.78, 213,068.51 and 134,858.04

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Solution

The fourth proportional to 142,040.78, 213,068.51 and 134,858.04 is: 202,294.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,040.78 : 213,068.51 = 134,858.04 : x
  2. Step 2: Convert to fraction form
    142,040.78/213,068.51 = 134,858.04/x
  3. Step 3: Cross multiply
    142,040.78x = 213,068.51 × 134,858.04
  4. Step 4: Simplify right side
    142,040.78x = 28,734,000,970.03
  5. Step 5: Solve for x
    x = 28,734,000,970.03/142,040.78
  6. Step 6: Final answer
    x = 202,294.03

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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.