Home / 142,451.30-213,696.15-48,985.70

Finding the Fourth Proportional to 142,451.30, 213,696.15 and 48,985.70

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Solution

The fourth proportional to 142,451.30, 213,696.15 and 48,985.70 is: 73,485.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,451.30 : 213,696.15 = 48,985.70 : x
  2. Step 2: Convert to fraction form
    142,451.30/213,696.15 = 48,985.70/x
  3. Step 3: Cross multiply
    142,451.30x = 213,696.15 × 48,985.70
  4. Step 4: Simplify right side
    142,451.30x = 10,468,055,495.06
  5. Step 5: Solve for x
    x = 10,468,055,495.06/142,451.30
  6. Step 6: Final answer
    x = 73,485.15

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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.