Home / 140,980.19-211,482.72-39,779.15

Finding the Fourth Proportional to 140,980.19, 211,482.72 and 39,779.15

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Solution

The fourth proportional to 140,980.19, 211,482.72 and 39,779.15 is: 59,672.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,980.19 : 211,482.72 = 39,779.15 : x
  2. Step 2: Convert to fraction form
    140,980.19/211,482.72 = 39,779.15/x
  3. Step 3: Cross multiply
    140,980.19x = 211,482.72 × 39,779.15
  4. Step 4: Simplify right side
    140,980.19x = 8,412,601,783.87
  5. Step 5: Solve for x
    x = 8,412,601,783.87/140,980.19
  6. Step 6: Final answer
    x = 59,672.23

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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.