Home / 153,941.52-212,442.90-85,956.20

Finding the Fourth Proportional to 153,941.52, 212,442.90 and 85,956.20

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Solution

The fourth proportional to 153,941.52, 212,442.90 and 85,956.20 is: 118,621.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,941.52 : 212,442.90 = 85,956.20 : x
  2. Step 2: Convert to fraction form
    153,941.52/212,442.90 = 85,956.20/x
  3. Step 3: Cross multiply
    153,941.52x = 212,442.90 × 85,956.20
  4. Step 4: Simplify right side
    153,941.52x = 18,260,783,338.77
  5. Step 5: Solve for x
    x = 18,260,783,338.77/153,941.52
  6. Step 6: Final answer
    x = 118,621.56

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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.