Home / 189,152.72-261,030.68-104,271.20

Finding the Fourth Proportional to 189,152.72, 261,030.68 and 104,271.20

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Solution

The fourth proportional to 189,152.72, 261,030.68 and 104,271.20 is: 143,894.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,152.72 : 261,030.68 = 104,271.20 : x
  2. Step 2: Convert to fraction form
    189,152.72/261,030.68 = 104,271.20/x
  3. Step 3: Cross multiply
    189,152.72x = 261,030.68 × 104,271.20
  4. Step 4: Simplify right side
    189,152.72x = 27,217,982,240.42
  5. Step 5: Solve for x
    x = 27,217,982,240.42/189,152.72
  6. Step 6: Final answer
    x = 143,894.22

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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.