Home / 139,000.02-191,814.84-75,336.46

Finding the Fourth Proportional to 139,000.02, 191,814.84 and 75,336.46

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Solution

The fourth proportional to 139,000.02, 191,814.84 and 75,336.46 is: 103,961.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,000.02 : 191,814.84 = 75,336.46 : x
  2. Step 2: Convert to fraction form
    139,000.02/191,814.84 = 75,336.46/x
  3. Step 3: Cross multiply
    139,000.02x = 191,814.84 × 75,336.46
  4. Step 4: Simplify right side
    139,000.02x = 14,450,651,021.07
  5. Step 5: Solve for x
    x = 14,450,651,021.07/139,000.02
  6. Step 6: Final answer
    x = 103,961.50

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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.