Home / 97,805.16-135,038.34-66,018.60

Finding the Fourth Proportional to 97,805.16, 135,038.34 and 66,018.60

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Solution

The fourth proportional to 97,805.16, 135,038.34 and 66,018.60 is: 91,151.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,805.16 : 135,038.34 = 66,018.60 : x
  2. Step 2: Convert to fraction form
    97,805.16/135,038.34 = 66,018.60/x
  3. Step 3: Cross multiply
    97,805.16x = 135,038.34 × 66,018.60
  4. Step 4: Simplify right side
    97,805.16x = 8,915,042,153.12
  5. Step 5: Solve for x
    x = 8,915,042,153.12/97,805.16
  6. Step 6: Final answer
    x = 91,151.04

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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.