Home / 94,220.70-141,331.05-81,390.30

Finding the Fourth Proportional to 94,220.70, 141,331.05 and 81,390.30

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Solution

The fourth proportional to 94,220.70, 141,331.05 and 81,390.30 is: 122,085.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,220.70 : 141,331.05 = 81,390.30 : x
  2. Step 2: Convert to fraction form
    94,220.70/141,331.05 = 81,390.30/x
  3. Step 3: Cross multiply
    94,220.70x = 141,331.05 × 81,390.30
  4. Step 4: Simplify right side
    94,220.70x = 11,502,976,558.82
  5. Step 5: Solve for x
    x = 11,502,976,558.82/94,220.70
  6. Step 6: Final answer
    x = 122,085.45

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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.