Home / 212,070.79-292,655.33-115,272.55

Finding the Fourth Proportional to 212,070.79, 292,655.33 and 115,272.55

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Solution

The fourth proportional to 212,070.79, 292,655.33 and 115,272.55 is: 159,074.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,070.79 : 292,655.33 = 115,272.55 : x
  2. Step 2: Convert to fraction form
    212,070.79/292,655.33 = 115,272.55/x
  3. Step 3: Cross multiply
    212,070.79x = 292,655.33 × 115,272.55
  4. Step 4: Simplify right side
    212,070.79x = 33,735,125,583.83
  5. Step 5: Solve for x
    x = 33,735,125,583.83/212,070.79
  6. Step 6: Final answer
    x = 159,074.83

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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.