Home / 141,777.40-212,666.10-127,780.60

Finding the Fourth Proportional to 141,777.40, 212,666.10 and 127,780.60

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Solution

The fourth proportional to 141,777.40, 212,666.10 and 127,780.60 is: 191,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,777.40 : 212,666.10 = 127,780.60 : x
  2. Step 2: Convert to fraction form
    141,777.40/212,666.10 = 127,780.60/x
  3. Step 3: Cross multiply
    141,777.40x = 212,666.10 × 127,780.60
  4. Step 4: Simplify right side
    141,777.40x = 27,174,601,857.66
  5. Step 5: Solve for x
    x = 27,174,601,857.66/141,777.40
  6. Step 6: Final answer
    x = 191,670.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.