Home / 153,297.36-211,548.87-85,313.25

Finding the Fourth Proportional to 153,297.36, 211,548.87 and 85,313.25

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Solution

The fourth proportional to 153,297.36, 211,548.87 and 85,313.25 is: 117,731.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,297.36 : 211,548.87 = 85,313.25 : x
  2. Step 2: Convert to fraction form
    153,297.36/211,548.87 = 85,313.25/x
  3. Step 3: Cross multiply
    153,297.36x = 211,548.87 × 85,313.25
  4. Step 4: Simplify right side
    153,297.36x = 18,047,921,633.53
  5. Step 5: Solve for x
    x = 18,047,921,633.53/153,297.36
  6. Step 6: Final answer
    x = 117,731.46

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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.