Home / 143,332.80-214,703.55-83,988.60

Finding the Fourth Proportional to 143,332.80, 214,703.55 and 83,988.60

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Solution

The fourth proportional to 143,332.80, 214,703.55 and 83,988.60 is: 125,809.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,332.80 : 214,703.55 = 83,988.60 : x
  2. Step 2: Convert to fraction form
    143,332.80/214,703.55 = 83,988.60/x
  3. Step 3: Cross multiply
    143,332.80x = 214,703.55 × 83,988.60
  4. Step 4: Simplify right side
    143,332.80x = 18,032,650,579.53
  5. Step 5: Solve for x
    x = 18,032,650,579.53/143,332.80
  6. Step 6: Final answer
    x = 125,809.66

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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.