Home / 105,126.22-145,068.77-57,370.34

Finding the Fourth Proportional to 105,126.22, 145,068.77 and 57,370.34

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Solution

The fourth proportional to 105,126.22, 145,068.77 and 57,370.34 is: 79,168.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,126.22 : 145,068.77 = 57,370.34 : x
  2. Step 2: Convert to fraction form
    105,126.22/145,068.77 = 57,370.34/x
  3. Step 3: Cross multiply
    105,126.22x = 145,068.77 × 57,370.34
  4. Step 4: Simplify right side
    105,126.22x = 8,322,645,164.38
  5. Step 5: Solve for x
    x = 8,322,645,164.38/105,126.22
  6. Step 6: Final answer
    x = 79,168.12

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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.