Home / 99,317.03-137,041.63-65,339.26

Finding the Fourth Proportional to 99,317.03, 137,041.63 and 65,339.26

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Solution

The fourth proportional to 99,317.03, 137,041.63 and 65,339.26 is: 90,157.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,317.03 : 137,041.63 = 65,339.26 : x
  2. Step 2: Convert to fraction form
    99,317.03/137,041.63 = 65,339.26/x
  3. Step 3: Cross multiply
    99,317.03x = 137,041.63 × 65,339.26
  4. Step 4: Simplify right side
    99,317.03x = 8,954,198,187.44
  5. Step 5: Solve for x
    x = 8,954,198,187.44/99,317.03
  6. Step 6: Final answer
    x = 90,157.74

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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.