Home / 102,045.76-140,824.84-56,107.34

Finding the Fourth Proportional to 102,045.76, 140,824.84 and 56,107.34

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Solution

The fourth proportional to 102,045.76, 140,824.84 and 56,107.34 is: 77,429.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,045.76 : 140,824.84 = 56,107.34 : x
  2. Step 2: Convert to fraction form
    102,045.76/140,824.84 = 56,107.34/x
  3. Step 3: Cross multiply
    102,045.76x = 140,824.84 × 56,107.34
  4. Step 4: Simplify right side
    102,045.76x = 7,901,307,249.85
  5. Step 5: Solve for x
    x = 7,901,307,249.85/102,045.76
  6. Step 6: Final answer
    x = 77,429.06

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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.