Home / 113,452.98-170,256.03-85,393.77

Finding the Fourth Proportional to 113,452.98, 170,256.03 and 85,393.77

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Solution

The fourth proportional to 113,452.98, 170,256.03 and 85,393.77 is: 128,148.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,452.98 : 170,256.03 = 85,393.77 : x
  2. Step 2: Convert to fraction form
    113,452.98/170,256.03 = 85,393.77/x
  3. Step 3: Cross multiply
    113,452.98x = 170,256.03 × 85,393.77
  4. Step 4: Simplify right side
    113,452.98x = 14,538,804,266.93
  5. Step 5: Solve for x
    x = 14,538,804,266.93/113,452.98
  6. Step 6: Final answer
    x = 128,148.28

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1.5x scale

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.