Home / 98,705.36-136,186.44-56,248.40

Finding the Fourth Proportional to 98,705.36, 136,186.44 and 56,248.40

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Solution

The fourth proportional to 98,705.36, 136,186.44 and 56,248.40 is: 77,607.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,705.36 : 136,186.44 = 56,248.40 : x
  2. Step 2: Convert to fraction form
    98,705.36/136,186.44 = 56,248.40/x
  3. Step 3: Cross multiply
    98,705.36x = 136,186.44 × 56,248.40
  4. Step 4: Simplify right side
    98,705.36x = 7,660,269,351.70
  5. Step 5: Solve for x
    x = 7,660,269,351.70/98,705.36
  6. Step 6: Final answer
    x = 77,607.43

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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.