Home / 98,243.14-147,467.79-87,070

Finding the Fourth Proportional to 98,243.14, 147,467.79 and 87,070

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Solution

The fourth proportional to 98,243.14, 147,467.79 and 87,070 is: 130,696.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,243.14 : 147,467.79 = 87,070 : x
  2. Step 2: Convert to fraction form
    98,243.14/147,467.79 = 87,070/x
  3. Step 3: Cross multiply
    98,243.14x = 147,467.79 × 87,070
  4. Step 4: Simplify right side
    98,243.14x = 12,840,020,475.30
  5. Step 5: Solve for x
    x = 12,840,020,475.30/98,243.14
  6. Step 6: Final answer
    x = 130,696.36

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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.