Home / 141,328.17-212,023.44-78,240.33

Finding the Fourth Proportional to 141,328.17, 212,023.44 and 78,240.33

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Solution

The fourth proportional to 141,328.17, 212,023.44 and 78,240.33 is: 117,377.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,328.17 : 212,023.44 = 78,240.33 : x
  2. Step 2: Convert to fraction form
    141,328.17/212,023.44 = 78,240.33/x
  3. Step 3: Cross multiply
    141,328.17x = 212,023.44 × 78,240.33
  4. Step 4: Simplify right side
    141,328.17x = 16,588,783,913.34
  5. Step 5: Solve for x
    x = 16,588,783,913.34/141,328.17
  6. Step 6: Final answer
    x = 117,377.76

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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.