Home / 138,779.18-208,169.40-33,597.98

Finding the Fourth Proportional to 138,779.18, 208,169.40 and 33,597.98

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Solution

The fourth proportional to 138,779.18, 208,169.40 and 33,597.98 is: 50,397.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,779.18 : 208,169.40 = 33,597.98 : x
  2. Step 2: Convert to fraction form
    138,779.18/208,169.40 = 33,597.98/x
  3. Step 3: Cross multiply
    138,779.18x = 208,169.40 × 33,597.98
  4. Step 4: Simplify right side
    138,779.18x = 6,994,071,337.81
  5. Step 5: Solve for x
    x = 6,994,071,337.81/138,779.18
  6. Step 6: Final answer
    x = 50,397.12

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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.