Home / 105,364.54-145,403.12-57,622.33

Finding the Fourth Proportional to 105,364.54, 145,403.12 and 57,622.33

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Solution

The fourth proportional to 105,364.54, 145,403.12 and 57,622.33 is: 79,518.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,364.54 : 145,403.12 = 57,622.33 : x
  2. Step 2: Convert to fraction form
    105,364.54/145,403.12 = 57,622.33/x
  3. Step 3: Cross multiply
    105,364.54x = 145,403.12 × 57,622.33
  4. Step 4: Simplify right side
    105,364.54x = 8,378,465,548.54
  5. Step 5: Solve for x
    x = 8,378,465,548.54/105,364.54
  6. Step 6: Final answer
    x = 79,518.84

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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.