Home / 143,165.55-197,577.60-79,503.35

Finding the Fourth Proportional to 143,165.55, 197,577.60 and 79,503.35

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Solution

The fourth proportional to 143,165.55, 197,577.60 and 79,503.35 is: 109,719.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,165.55 : 197,577.60 = 79,503.35 : x
  2. Step 2: Convert to fraction form
    143,165.55/197,577.60 = 79,503.35/x
  3. Step 3: Cross multiply
    143,165.55x = 197,577.60 × 79,503.35
  4. Step 4: Simplify right side
    143,165.55x = 15,708,080,097.07
  5. Step 5: Solve for x
    x = 15,708,080,097.07/143,165.55
  6. Step 6: Final answer
    x = 109,719.69

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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.