Home / 465,045.94-697,572.70-128,105.18

Finding the Fourth Proportional to 465,045.94, 697,572.70 and 128,105.18

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Solution

The fourth proportional to 465,045.94, 697,572.70 and 128,105.18 is: 192,158.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,045.94 : 697,572.70 = 128,105.18 : x
  2. Step 2: Convert to fraction form
    465,045.94/697,572.70 = 128,105.18/x
  3. Step 3: Cross multiply
    465,045.94x = 697,572.70 × 128,105.18
  4. Step 4: Simplify right side
    465,045.94x = 89,362,676,296.59
  5. Step 5: Solve for x
    x = 89,362,676,296.59/465,045.94
  6. Step 6: Final answer
    x = 192,158.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.