Home / 212,099.12-292,698.68-115,303.17

Finding the Fourth Proportional to 212,099.12, 292,698.68 and 115,303.17

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Solution

The fourth proportional to 212,099.12, 292,698.68 and 115,303.17 is: 159,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,099.12 : 292,698.68 = 115,303.17 : x
  2. Step 2: Convert to fraction form
    212,099.12/292,698.68 = 115,303.17/x
  3. Step 3: Cross multiply
    212,099.12x = 292,698.68 × 115,303.17
  4. Step 4: Simplify right side
    212,099.12x = 33,749,085,658.82
  5. Step 5: Solve for x
    x = 33,749,085,658.82/212,099.12
  6. Step 6: Final answer
    x = 159,119.40

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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.