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Finding the Fourth Proportional to 145,610.54, 218,415.55 and 45,779.44

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Solution

The fourth proportional to 145,610.54, 218,415.55 and 45,779.44 is: 68,669.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,610.54 : 218,415.55 = 45,779.44 : x
  2. Step 2: Convert to fraction form
    145,610.54/218,415.55 = 45,779.44/x
  3. Step 3: Cross multiply
    145,610.54x = 218,415.55 × 45,779.44
  4. Step 4: Simplify right side
    145,610.54x = 9,998,941,566.29
  5. Step 5: Solve for x
    x = 9,998,941,566.29/145,610.54
  6. Step 6: Final answer
    x = 68,669.08

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1.5x scale

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.