Home / 113,455.44-170,473.63-85,637.48

Finding the Fourth Proportional to 113,455.44, 170,473.63 and 85,637.48

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Solution

The fourth proportional to 113,455.44, 170,473.63 and 85,637.48 is: 128,675.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,455.44 : 170,473.63 = 85,637.48 : x
  2. Step 2: Convert to fraction form
    113,455.44/170,473.63 = 85,637.48/x
  3. Step 3: Cross multiply
    113,455.44x = 170,473.63 × 85,637.48
  4. Step 4: Simplify right side
    113,455.44x = 14,598,932,291.74
  5. Step 5: Solve for x
    x = 14,598,932,291.74/113,455.44
  6. Step 6: Final answer
    x = 128,675.47

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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.