Home / 105,091.85-145,026.75-67,366.10

Finding the Fourth Proportional to 105,091.85, 145,026.75 and 67,366.10

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Solution

The fourth proportional to 105,091.85, 145,026.75 and 67,366.10 is: 92,965.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,091.85 : 145,026.75 = 67,366.10 : x
  2. Step 2: Convert to fraction form
    105,091.85/145,026.75 = 67,366.10/x
  3. Step 3: Cross multiply
    105,091.85x = 145,026.75 × 67,366.10
  4. Step 4: Simplify right side
    105,091.85x = 9,769,886,543.18
  5. Step 5: Solve for x
    x = 9,769,886,543.18/105,091.85
  6. Step 6: Final answer
    x = 92,965.22

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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.