Home / 134,403.95-185,400.20-84,015.47

Finding the Fourth Proportional to 134,403.95, 185,400.20 and 84,015.47

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Solution

The fourth proportional to 134,403.95, 185,400.20 and 84,015.47 is: 115,893.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,403.95 : 185,400.20 = 84,015.47 : x
  2. Step 2: Convert to fraction form
    134,403.95/185,400.20 = 84,015.47/x
  3. Step 3: Cross multiply
    134,403.95x = 185,400.20 × 84,015.47
  4. Step 4: Simplify right side
    134,403.95x = 15,576,483,594.02
  5. Step 5: Solve for x
    x = 15,576,483,594.02/134,403.95
  6. Step 6: Final answer
    x = 115,893.05

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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.