Home / 98,905.56-147,638.88-91,596.12

Finding the Fourth Proportional to 98,905.56, 147,638.88 and 91,596.12

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Solution

The fourth proportional to 98,905.56, 147,638.88 and 91,596.12 is: 136,727.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,905.56 : 147,638.88 = 91,596.12 : x
  2. Step 2: Convert to fraction form
    98,905.56/147,638.88 = 91,596.12/x
  3. Step 3: Cross multiply
    98,905.56x = 147,638.88 × 91,596.12
  4. Step 4: Simplify right side
    98,905.56x = 13,523,148,569.15
  5. Step 5: Solve for x
    x = 13,523,148,569.15/98,905.56
  6. Step 6: Final answer
    x = 136,727.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.