Home / 97,040.40-145,366.20-65,547.60

Finding the Fourth Proportional to 97,040.40, 145,366.20 and 65,547.60

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Solution

The fourth proportional to 97,040.40, 145,366.20 and 65,547.60 is: 98,190.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,040.40 : 145,366.20 = 65,547.60 : x
  2. Step 2: Convert to fraction form
    97,040.40/145,366.20 = 65,547.60/x
  3. Step 3: Cross multiply
    97,040.40x = 145,366.20 × 65,547.60
  4. Step 4: Simplify right side
    97,040.40x = 9,528,405,531.12
  5. Step 5: Solve for x
    x = 9,528,405,531.12/97,040.40
  6. Step 6: Final answer
    x = 98,190.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.