Home / 98,156.02-135,420.79-64,184.38

Finding the Fourth Proportional to 98,156.02, 135,420.79 and 64,184.38

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Solution

The fourth proportional to 98,156.02, 135,420.79 and 64,184.38 is: 88,551.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,156.02 : 135,420.79 = 64,184.38 : x
  2. Step 2: Convert to fraction form
    98,156.02/135,420.79 = 64,184.38/x
  3. Step 3: Cross multiply
    98,156.02x = 135,420.79 × 64,184.38
  4. Step 4: Simplify right side
    98,156.02x = 8,691,899,445.26
  5. Step 5: Solve for x
    x = 8,691,899,445.26/98,156.02
  6. Step 6: Final answer
    x = 88,551.87

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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.