Home / 105,519.15-145,620.36-60,204.51

Finding the Fourth Proportional to 105,519.15, 145,620.36 and 60,204.51

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Solution

The fourth proportional to 105,519.15, 145,620.36 and 60,204.51 is: 83,084.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,519.15 : 145,620.36 = 60,204.51 : x
  2. Step 2: Convert to fraction form
    105,519.15/145,620.36 = 60,204.51/x
  3. Step 3: Cross multiply
    105,519.15x = 145,620.36 × 60,204.51
  4. Step 4: Simplify right side
    105,519.15x = 8,767,002,419.82
  5. Step 5: Solve for x
    x = 8,767,002,419.82/105,519.15
  6. Step 6: Final answer
    x = 83,084.47

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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.