Home / 141,381.74-212,072.65-66,446.86

Finding the Fourth Proportional to 141,381.74, 212,072.65 and 66,446.86

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Solution

The fourth proportional to 141,381.74, 212,072.65 and 66,446.86 is: 99,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,381.74 : 212,072.65 = 66,446.86 : x
  2. Step 2: Convert to fraction form
    141,381.74/212,072.65 = 66,446.86/x
  3. Step 3: Cross multiply
    141,381.74x = 212,072.65 × 66,446.86
  4. Step 4: Simplify right side
    141,381.74x = 14,091,561,684.38
  5. Step 5: Solve for x
    x = 14,091,561,684.38/141,381.74
  6. Step 6: Final answer
    x = 99,670.31

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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.