Home / 141,015.04-211,303.86-81,703.60

Finding the Fourth Proportional to 141,015.04, 211,303.86 and 81,703.60

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Solution

The fourth proportional to 141,015.04, 211,303.86 and 81,703.60 is: 122,428.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,015.04 : 211,303.86 = 81,703.60 : x
  2. Step 2: Convert to fraction form
    141,015.04/211,303.86 = 81,703.60/x
  3. Step 3: Cross multiply
    141,015.04x = 211,303.86 × 81,703.60
  4. Step 4: Simplify right side
    141,015.04x = 17,264,286,055.90
  5. Step 5: Solve for x
    x = 17,264,286,055.90/141,015.04
  6. Step 6: Final answer
    x = 122,428.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.