Home / 97,531.21-134,555.98-72,098.64

Finding the Fourth Proportional to 97,531.21, 134,555.98 and 72,098.64

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Solution

The fourth proportional to 97,531.21, 134,555.98 and 72,098.64 is: 99,468.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,531.21 : 134,555.98 = 72,098.64 : x
  2. Step 2: Convert to fraction form
    97,531.21/134,555.98 = 72,098.64/x
  3. Step 3: Cross multiply
    97,531.21x = 134,555.98 × 72,098.64
  4. Step 4: Simplify right side
    97,531.21x = 9,701,303,161.87
  5. Step 5: Solve for x
    x = 9,701,303,161.87/97,531.21
  6. Step 6: Final answer
    x = 99,468.71

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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.