Home / 141,917.13-212,915.79-42,077.07

Finding the Fourth Proportional to 141,917.13, 212,915.79 and 42,077.07

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Solution

The fourth proportional to 141,917.13, 212,915.79 and 42,077.07 is: 63,127.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,917.13 : 212,915.79 = 42,077.07 : x
  2. Step 2: Convert to fraction form
    141,917.13/212,915.79 = 42,077.07/x
  3. Step 3: Cross multiply
    141,917.13x = 212,915.79 × 42,077.07
  4. Step 4: Simplify right side
    141,917.13x = 8,958,872,599.94
  5. Step 5: Solve for x
    x = 8,958,872,599.94/141,917.13
  6. Step 6: Final answer
    x = 63,127.49

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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.