Home / 141,125.76-212,533.44-128,528.64

Finding the Fourth Proportional to 141,125.76, 212,533.44 and 128,528.64

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Solution

The fourth proportional to 141,125.76, 212,533.44 and 128,528.64 is: 193,562.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,125.76 : 212,533.44 = 128,528.64 : x
  2. Step 2: Convert to fraction form
    141,125.76/212,533.44 = 128,528.64/x
  3. Step 3: Cross multiply
    141,125.76x = 212,533.44 × 128,528.64
  4. Step 4: Simplify right side
    141,125.76x = 27,316,633,997.72
  5. Step 5: Solve for x
    x = 27,316,633,997.72/141,125.76
  6. Step 6: Final answer
    x = 193,562.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.