Home / 103,931.99-143,426.55-57,993.58

Finding the Fourth Proportional to 103,931.99, 143,426.55 and 57,993.58

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Solution

The fourth proportional to 103,931.99, 143,426.55 and 57,993.58 is: 80,031.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,931.99 : 143,426.55 = 57,993.58 : x
  2. Step 2: Convert to fraction form
    103,931.99/143,426.55 = 57,993.58/x
  3. Step 3: Cross multiply
    103,931.99x = 143,426.55 × 57,993.58
  4. Step 4: Simplify right side
    103,931.99x = 8,317,818,365.32
  5. Step 5: Solve for x
    x = 8,317,818,365.32/103,931.99
  6. Step 6: Final answer
    x = 80,031.36

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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.