Home / 210,011.50-289,807.77-119,379.39

Finding the Fourth Proportional to 210,011.50, 289,807.77 and 119,379.39

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Solution

The fourth proportional to 210,011.50, 289,807.77 and 119,379.39 is: 164,738.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,011.50 : 289,807.77 = 119,379.39 : x
  2. Step 2: Convert to fraction form
    210,011.50/289,807.77 = 119,379.39/x
  3. Step 3: Cross multiply
    210,011.50x = 289,807.77 × 119,379.39
  4. Step 4: Simplify right side
    210,011.50x = 34,597,074,799.86
  5. Step 5: Solve for x
    x = 34,597,074,799.86/210,011.50
  6. Step 6: Final answer
    x = 164,738.95

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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.