Home / 103,803.40-143,219.06-58,465.52

Finding the Fourth Proportional to 103,803.40, 143,219.06 and 58,465.52

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Solution

The fourth proportional to 103,803.40, 143,219.06 and 58,465.52 is: 80,665.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,803.40 : 143,219.06 = 58,465.52 : x
  2. Step 2: Convert to fraction form
    103,803.40/143,219.06 = 58,465.52/x
  3. Step 3: Cross multiply
    103,803.40x = 143,219.06 × 58,465.52
  4. Step 4: Simplify right side
    103,803.40x = 8,373,376,816.81
  5. Step 5: Solve for x
    x = 8,373,376,816.81/103,803.40
  6. Step 6: Final answer
    x = 80,665.73

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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.