Home / 105,526.73-145,625.60-57,779.06

Finding the Fourth Proportional to 105,526.73, 145,625.60 and 57,779.06

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Solution

The fourth proportional to 105,526.73, 145,625.60 and 57,779.06 is: 79,734.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,526.73 : 145,625.60 = 57,779.06 : x
  2. Step 2: Convert to fraction form
    105,526.73/145,625.60 = 57,779.06/x
  3. Step 3: Cross multiply
    105,526.73x = 145,625.60 × 57,779.06
  4. Step 4: Simplify right side
    105,526.73x = 8,414,109,696.26
  5. Step 5: Solve for x
    x = 8,414,109,696.26/105,526.73
  6. Step 6: Final answer
    x = 79,734.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.