Home / 103,629.80-143,007.56-58,307.84

Finding the Fourth Proportional to 103,629.80, 143,007.56 and 58,307.84

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Solution

The fourth proportional to 103,629.80, 143,007.56 and 58,307.84 is: 80,463.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.80 : 143,007.56 = 58,307.84 : x
  2. Step 2: Convert to fraction form
    103,629.80/143,007.56 = 58,307.84/x
  3. Step 3: Cross multiply
    103,629.80x = 143,007.56 × 58,307.84
  4. Step 4: Simplify right side
    103,629.80x = 8,338,461,927.27
  5. Step 5: Solve for x
    x = 8,338,461,927.27/103,629.80
  6. Step 6: Final answer
    x = 80,463.94

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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.