Home / 98,671.90-136,133.94-56,200.36

Finding the Fourth Proportional to 98,671.90, 136,133.94 and 56,200.36

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Solution

The fourth proportional to 98,671.90, 136,133.94 and 56,200.36 is: 77,537.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,671.90 : 136,133.94 = 56,200.36 : x
  2. Step 2: Convert to fraction form
    98,671.90/136,133.94 = 56,200.36/x
  3. Step 3: Cross multiply
    98,671.90x = 136,133.94 × 56,200.36
  4. Step 4: Simplify right side
    98,671.90x = 7,650,776,436.22
  5. Step 5: Solve for x
    x = 7,650,776,436.22/98,671.90
  6. Step 6: Final answer
    x = 77,537.54

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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.