Home / 194,031.36-291,047.16-87,290.64

Finding the Fourth Proportional to 194,031.36, 291,047.16 and 87,290.64

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Solution

The fourth proportional to 194,031.36, 291,047.16 and 87,290.64 is: 130,936.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,031.36 : 291,047.16 = 87,290.64 : x
  2. Step 2: Convert to fraction form
    194,031.36/291,047.16 = 87,290.64/x
  3. Step 3: Cross multiply
    194,031.36x = 291,047.16 × 87,290.64
  4. Step 4: Simplify right side
    194,031.36x = 25,405,692,866.58
  5. Step 5: Solve for x
    x = 25,405,692,866.58/194,031.36
  6. Step 6: Final answer
    x = 130,936.01

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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.