Home / 212,145.78-292,459.64-168,744.63

Finding the Fourth Proportional to 212,145.78, 292,459.64 and 168,744.63

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Solution

The fourth proportional to 212,145.78, 292,459.64 and 168,744.63 is: 232,627.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,145.78 : 292,459.64 = 168,744.63 : x
  2. Step 2: Convert to fraction form
    212,145.78/292,459.64 = 168,744.63/x
  3. Step 3: Cross multiply
    212,145.78x = 292,459.64 × 168,744.63
  4. Step 4: Simplify right side
    212,145.78x = 49,350,992,898.01
  5. Step 5: Solve for x
    x = 49,350,992,898.01/212,145.78
  6. Step 6: Final answer
    x = 232,627.74

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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.