Home / 212,131.76-292,742.90-116,644.60

Finding the Fourth Proportional to 212,131.76, 292,742.90 and 116,644.60

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Solution

The fourth proportional to 212,131.76, 292,742.90 and 116,644.60 is: 160,970.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,131.76 : 292,742.90 = 116,644.60 : x
  2. Step 2: Convert to fraction form
    212,131.76/292,742.90 = 116,644.60/x
  3. Step 3: Cross multiply
    212,131.76x = 292,742.90 × 116,644.60
  4. Step 4: Simplify right side
    212,131.76x = 34,146,878,473.34
  5. Step 5: Solve for x
    x = 34,146,878,473.34/212,131.76
  6. Step 6: Final answer
    x = 160,970.14

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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.