Home / 153,790.32-212,232.24-85,813.44

Finding the Fourth Proportional to 153,790.32, 212,232.24 and 85,813.44

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Solution

The fourth proportional to 153,790.32, 212,232.24 and 85,813.44 is: 118,423.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,790.32 : 212,232.24 = 85,813.44 : x
  2. Step 2: Convert to fraction form
    153,790.32/212,232.24 = 85,813.44/x
  3. Step 3: Cross multiply
    153,790.32x = 212,232.24 × 85,813.44
  4. Step 4: Simplify right side
    153,790.32x = 18,212,378,593.31
  5. Step 5: Solve for x
    x = 18,212,378,593.31/153,790.32
  6. Step 6: Final answer
    x = 118,423.44

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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.