Home / 142,466.80-213,719.40-49,001.20

Finding the Fourth Proportional to 142,466.80, 213,719.40 and 49,001.20

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Solution

The fourth proportional to 142,466.80, 213,719.40 and 49,001.20 is: 73,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,466.80 : 213,719.40 = 49,001.20 : x
  2. Step 2: Convert to fraction form
    142,466.80/213,719.40 = 49,001.20/x
  3. Step 3: Cross multiply
    142,466.80x = 213,719.40 × 49,001.20
  4. Step 4: Simplify right side
    142,466.80x = 10,472,507,063.28
  5. Step 5: Solve for x
    x = 10,472,507,063.28/142,466.80
  6. Step 6: Final answer
    x = 73,508.40

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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.