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Finding the Fourth Proportional to 145,851.93, 218,779.65 and 40,664.52

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Solution

The fourth proportional to 145,851.93, 218,779.65 and 40,664.52 is: 60,997.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,851.93 : 218,779.65 = 40,664.52 : x
  2. Step 2: Convert to fraction form
    145,851.93/218,779.65 = 40,664.52/x
  3. Step 3: Cross multiply
    145,851.93x = 218,779.65 × 40,664.52
  4. Step 4: Simplify right side
    145,851.93x = 8,896,569,453.02
  5. Step 5: Solve for x
    x = 8,896,569,453.02/145,851.93
  6. Step 6: Final answer
    x = 60,997.27

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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.