Home / 106,946.90-147,590.21-61,621.37

Finding the Fourth Proportional to 106,946.90, 147,590.21 and 61,621.37

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Solution

The fourth proportional to 106,946.90, 147,590.21 and 61,621.37 is: 85,039.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,946.90 : 147,590.21 = 61,621.37 : x
  2. Step 2: Convert to fraction form
    106,946.90/147,590.21 = 61,621.37/x
  3. Step 3: Cross multiply
    106,946.90x = 147,590.21 × 61,621.37
  4. Step 4: Simplify right side
    106,946.90x = 9,094,710,630.68
  5. Step 5: Solve for x
    x = 9,094,710,630.68/106,946.90
  6. Step 6: Final answer
    x = 85,039.50

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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.