Home / 143,953.02-198,655.47-80,289.18

Finding the Fourth Proportional to 143,953.02, 198,655.47 and 80,289.18

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Solution

The fourth proportional to 143,953.02, 198,655.47 and 80,289.18 is: 110,799.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,953.02 : 198,655.47 = 80,289.18 : x
  2. Step 2: Convert to fraction form
    143,953.02/198,655.47 = 80,289.18/x
  3. Step 3: Cross multiply
    143,953.02x = 198,655.47 × 80,289.18
  4. Step 4: Simplify right side
    143,953.02x = 15,949,884,788.81
  5. Step 5: Solve for x
    x = 15,949,884,788.81/143,953.02
  6. Step 6: Final answer
    x = 110,799.24

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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.