Home / 103,803.02-143,218.54-58,465.14

Finding the Fourth Proportional to 103,803.02, 143,218.54 and 58,465.14

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Solution

The fourth proportional to 103,803.02, 143,218.54 and 58,465.14 is: 80,665.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,803.02 : 143,218.54 = 58,465.14 : x
  2. Step 2: Convert to fraction form
    103,803.02/143,218.54 = 58,465.14/x
  3. Step 3: Cross multiply
    103,803.02x = 143,218.54 × 58,465.14
  4. Step 4: Simplify right side
    103,803.02x = 8,373,291,991.70
  5. Step 5: Solve for x
    x = 8,373,291,991.70/103,803.02
  6. Step 6: Final answer
    x = 80,665.21

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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.