Home / 98,376.21-135,430.85-93,857.01

Finding the Fourth Proportional to 98,376.21, 135,430.85 and 93,857.01

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Solution

The fourth proportional to 98,376.21, 135,430.85 and 93,857.01 is: 129,209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,376.21 : 135,430.85 = 93,857.01 : x
  2. Step 2: Convert to fraction form
    98,376.21/135,430.85 = 93,857.01/x
  3. Step 3: Cross multiply
    98,376.21x = 135,430.85 × 93,857.01
  4. Step 4: Simplify right side
    98,376.21x = 12,711,134,173.47
  5. Step 5: Solve for x
    x = 12,711,134,173.47/98,376.21
  6. Step 6: Final answer
    x = 129,209.43

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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.