Home / 102,779.22-154,185.47-31,685.24

Finding the Fourth Proportional to 102,779.22, 154,185.47 and 31,685.24

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Solution

The fourth proportional to 102,779.22, 154,185.47 and 31,685.24 is: 47,532.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,779.22 : 154,185.47 = 31,685.24 : x
  2. Step 2: Convert to fraction form
    102,779.22/154,185.47 = 31,685.24/x
  3. Step 3: Cross multiply
    102,779.22x = 154,185.47 × 31,685.24
  4. Step 4: Simplify right side
    102,779.22x = 4,885,402,692.11
  5. Step 5: Solve for x
    x = 4,885,402,692.11/102,779.22
  6. Step 6: Final answer
    x = 47,532.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.