Home / 208,271.46-312,342.45-75,134.32

Finding the Fourth Proportional to 208,271.46, 312,342.45 and 75,134.32

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Solution

The fourth proportional to 208,271.46, 312,342.45 and 75,134.32 is: 112,678.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,271.46 : 312,342.45 = 75,134.32 : x
  2. Step 2: Convert to fraction form
    208,271.46/312,342.45 = 75,134.32/x
  3. Step 3: Cross multiply
    208,271.46x = 312,342.45 × 75,134.32
  4. Step 4: Simplify right side
    208,271.46x = 23,467,637,587.88
  5. Step 5: Solve for x
    x = 23,467,637,587.88/208,271.46
  6. Step 6: Final answer
    x = 112,678.12

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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.