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Finding the Fourth Proportional to 114,779.72, 172,200.56 and 39,904.01

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Solution

The fourth proportional to 114,779.72, 172,200.56 and 39,904.01 is: 59,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,779.72 : 172,200.56 = 39,904.01 : x
  2. Step 2: Convert to fraction form
    114,779.72/172,200.56 = 39,904.01/x
  3. Step 3: Cross multiply
    114,779.72x = 172,200.56 × 39,904.01
  4. Step 4: Simplify right side
    114,779.72x = 6,871,492,453.47
  5. Step 5: Solve for x
    x = 6,871,492,453.47/114,779.72
  6. Step 6: Final answer
    x = 59,866.78

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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.