Home / 98,126.75-135,432.58-57,838.16

Finding the Fourth Proportional to 98,126.75, 135,432.58 and 57,838.16

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Solution

The fourth proportional to 98,126.75, 135,432.58 and 57,838.16 is: 79,827.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,126.75 : 135,432.58 = 57,838.16 : x
  2. Step 2: Convert to fraction form
    98,126.75/135,432.58 = 57,838.16/x
  3. Step 3: Cross multiply
    98,126.75x = 135,432.58 × 57,838.16
  4. Step 4: Simplify right side
    98,126.75x = 7,833,170,554.09
  5. Step 5: Solve for x
    x = 7,833,170,554.09/98,126.75
  6. Step 6: Final answer
    x = 79,827.07

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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.