Home / 147,578.65-203,657.55-83,916.43

Finding the Fourth Proportional to 147,578.65, 203,657.55 and 83,916.43

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Solution

The fourth proportional to 147,578.65, 203,657.55 and 83,916.43 is: 115,804.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,578.65 : 203,657.55 = 83,916.43 : x
  2. Step 2: Convert to fraction form
    147,578.65/203,657.55 = 83,916.43/x
  3. Step 3: Cross multiply
    147,578.65x = 203,657.55 × 83,916.43
  4. Step 4: Simplify right side
    147,578.65x = 17,090,214,538.55
  5. Step 5: Solve for x
    x = 17,090,214,538.55/147,578.65
  6. Step 6: Final answer
    x = 115,804.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.