Home / 97,475.72-145,880.88-81,698.55

Finding the Fourth Proportional to 97,475.72, 145,880.88 and 81,698.55

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Solution

The fourth proportional to 97,475.72, 145,880.88 and 81,698.55 is: 122,268.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,475.72 : 145,880.88 = 81,698.55 : x
  2. Step 2: Convert to fraction form
    97,475.72/145,880.88 = 81,698.55/x
  3. Step 3: Cross multiply
    97,475.72x = 145,880.88 × 81,698.55
  4. Step 4: Simplify right side
    97,475.72x = 11,918,256,368.72
  5. Step 5: Solve for x
    x = 11,918,256,368.72/97,475.72
  6. Step 6: Final answer
    x = 122,268.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.