Home / 98,705.57-136,213.30-53,383.61

Finding the Fourth Proportional to 98,705.57, 136,213.30 and 53,383.61

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Solution

The fourth proportional to 98,705.57, 136,213.30 and 53,383.61 is: 73,669.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,705.57 : 136,213.30 = 53,383.61 : x
  2. Step 2: Convert to fraction form
    98,705.57/136,213.30 = 53,383.61/x
  3. Step 3: Cross multiply
    98,705.57x = 136,213.30 × 53,383.61
  4. Step 4: Simplify right side
    98,705.57x = 7,271,557,024.79
  5. Step 5: Solve for x
    x = 7,271,557,024.79/98,705.57
  6. Step 6: Final answer
    x = 73,669.17

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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.