Home / 103,628.62-143,012.74-61,186.24

Finding the Fourth Proportional to 103,628.62, 143,012.74 and 61,186.24

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Solution

The fourth proportional to 103,628.62, 143,012.74 and 61,186.24 is: 84,440.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,628.62 : 143,012.74 = 61,186.24 : x
  2. Step 2: Convert to fraction form
    103,628.62/143,012.74 = 61,186.24/x
  3. Step 3: Cross multiply
    103,628.62x = 143,012.74 × 61,186.24
  4. Step 4: Simplify right side
    103,628.62x = 8,750,411,832.70
  5. Step 5: Solve for x
    x = 8,750,411,832.70/103,628.62
  6. Step 6: Final answer
    x = 84,440.11

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1.5x scale

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.