Home / 144,218.48-199,017.61-78,804.70

Finding the Fourth Proportional to 144,218.48, 199,017.61 and 78,804.70

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Solution

The fourth proportional to 144,218.48, 199,017.61 and 78,804.70 is: 108,748.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,218.48 : 199,017.61 = 78,804.70 : x
  2. Step 2: Convert to fraction form
    144,218.48/199,017.61 = 78,804.70/x
  3. Step 3: Cross multiply
    144,218.48x = 199,017.61 × 78,804.70
  4. Step 4: Simplify right side
    144,218.48x = 15,683,522,356.21
  5. Step 5: Solve for x
    x = 15,683,522,356.21/144,218.48
  6. Step 6: Final answer
    x = 108,748.36

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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.