Home / 98,099.02-135,417.79-66,310.98

Finding the Fourth Proportional to 98,099.02, 135,417.79 and 66,310.98

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Solution

The fourth proportional to 98,099.02, 135,417.79 and 66,310.98 is: 91,536.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,099.02 : 135,417.79 = 66,310.98 : x
  2. Step 2: Convert to fraction form
    98,099.02/135,417.79 = 66,310.98/x
  3. Step 3: Cross multiply
    98,099.02x = 135,417.79 × 66,310.98
  4. Step 4: Simplify right side
    98,099.02x = 8,979,686,040.52
  5. Step 5: Solve for x
    x = 8,979,686,040.52/98,099.02
  6. Step 6: Final answer
    x = 91,536.96

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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.