Home / 102,242.35-141,091.70-56,920.34

Finding the Fourth Proportional to 102,242.35, 141,091.70 and 56,920.34

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Solution

The fourth proportional to 102,242.35, 141,091.70 and 56,920.34 is: 78,548.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,242.35 : 141,091.70 = 56,920.34 : x
  2. Step 2: Convert to fraction form
    102,242.35/141,091.70 = 56,920.34/x
  3. Step 3: Cross multiply
    102,242.35x = 141,091.70 × 56,920.34
  4. Step 4: Simplify right side
    102,242.35x = 8,030,987,535.18
  5. Step 5: Solve for x
    x = 8,030,987,535.18/102,242.35
  6. Step 6: Final answer
    x = 78,548.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.