Home / 103,779.27-143,226.18-63,519.84

Finding the Fourth Proportional to 103,779.27, 143,226.18 and 63,519.84

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Solution

The fourth proportional to 103,779.27, 143,226.18 and 63,519.84 is: 87,663.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,779.27 : 143,226.18 = 63,519.84 : x
  2. Step 2: Convert to fraction form
    103,779.27/143,226.18 = 63,519.84/x
  3. Step 3: Cross multiply
    103,779.27x = 143,226.18 × 63,519.84
  4. Step 4: Simplify right side
    103,779.27x = 9,097,704,037.41
  5. Step 5: Solve for x
    x = 9,097,704,037.41/103,779.27
  6. Step 6: Final answer
    x = 87,663.98

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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.