Home / 105,009.22-144,909.57-57,263.50

Finding the Fourth Proportional to 105,009.22, 144,909.57 and 57,263.50

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Solution

The fourth proportional to 105,009.22, 144,909.57 and 57,263.50 is: 79,021.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,009.22 : 144,909.57 = 57,263.50 : x
  2. Step 2: Convert to fraction form
    105,009.22/144,909.57 = 57,263.50/x
  3. Step 3: Cross multiply
    105,009.22x = 144,909.57 × 57,263.50
  4. Step 4: Simplify right side
    105,009.22x = 8,298,029,161.70
  5. Step 5: Solve for x
    x = 8,298,029,161.70/105,009.22
  6. Step 6: Final answer
    x = 79,021.91

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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.