Home / 105,779.18-158,519.61-58,415.60

Finding the Fourth Proportional to 105,779.18, 158,519.61 and 58,415.60

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Solution

The fourth proportional to 105,779.18, 158,519.61 and 58,415.60 is: 87,541.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,779.18 : 158,519.61 = 58,415.60 : x
  2. Step 2: Convert to fraction form
    105,779.18/158,519.61 = 58,415.60/x
  3. Step 3: Cross multiply
    105,779.18x = 158,519.61 × 58,415.60
  4. Step 4: Simplify right side
    105,779.18x = 9,260,018,526.22
  5. Step 5: Solve for x
    x = 9,260,018,526.22/105,779.18
  6. Step 6: Final answer
    x = 87,541.03

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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.