Home / 86,308.32-119,090.64-79,332.30

Finding the Fourth Proportional to 86,308.32, 119,090.64 and 79,332.30

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Solution

The fourth proportional to 86,308.32, 119,090.64 and 79,332.30 is: 109,464.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,308.32 : 119,090.64 = 79,332.30 : x
  2. Step 2: Convert to fraction form
    86,308.32/119,090.64 = 79,332.30/x
  3. Step 3: Cross multiply
    86,308.32x = 119,090.64 × 79,332.30
  4. Step 4: Simplify right side
    86,308.32x = 9,447,734,379.67
  5. Step 5: Solve for x
    x = 9,447,734,379.67/86,308.32
  6. Step 6: Final answer
    x = 109,464.93

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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.