Home / 153,082.58-211,271.45-85,106.30

Finding the Fourth Proportional to 153,082.58, 211,271.45 and 85,106.30

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Solution

The fourth proportional to 153,082.58, 211,271.45 and 85,106.30 is: 117,456.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,082.58 : 211,271.45 = 85,106.30 : x
  2. Step 2: Convert to fraction form
    153,082.58/211,271.45 = 85,106.30/x
  3. Step 3: Cross multiply
    153,082.58x = 211,271.45 × 85,106.30
  4. Step 4: Simplify right side
    153,082.58x = 17,980,529,923.25
  5. Step 5: Solve for x
    x = 17,980,529,923.25/153,082.58
  6. Step 6: Final answer
    x = 117,456.41

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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.