Home / 105,110.09-145,052.33-57,364.50

Finding the Fourth Proportional to 105,110.09, 145,052.33 and 57,364.50

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Solution

The fourth proportional to 105,110.09, 145,052.33 and 57,364.50 is: 79,163.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,110.09 : 145,052.33 = 57,364.50 : x
  2. Step 2: Convert to fraction form
    105,110.09/145,052.33 = 57,364.50/x
  3. Step 3: Cross multiply
    105,110.09x = 145,052.33 × 57,364.50
  4. Step 4: Simplify right side
    105,110.09x = 8,320,854,384.29
  5. Step 5: Solve for x
    x = 8,320,854,384.29/105,110.09
  6. Step 6: Final answer
    x = 79,163.23

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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.