Home / 145,044.52-217,653.06-78,483.32

Finding the Fourth Proportional to 145,044.52, 217,653.06 and 78,483.32

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Solution

The fourth proportional to 145,044.52, 217,653.06 and 78,483.32 is: 117,771.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,044.52 : 217,653.06 = 78,483.32 : x
  2. Step 2: Convert to fraction form
    145,044.52/217,653.06 = 78,483.32/x
  3. Step 3: Cross multiply
    145,044.52x = 217,653.06 × 78,483.32
  4. Step 4: Simplify right side
    145,044.52x = 17,082,134,756.96
  5. Step 5: Solve for x
    x = 17,082,134,756.96/145,044.52
  6. Step 6: Final answer
    x = 117,771.67

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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.