Home / 103,094.30-142,280.13-57,779.96

Finding the Fourth Proportional to 103,094.30, 142,280.13 and 57,779.96

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Solution

The fourth proportional to 103,094.30, 142,280.13 and 57,779.96 is: 79,741.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,094.30 : 142,280.13 = 57,779.96 : x
  2. Step 2: Convert to fraction form
    103,094.30/142,280.13 = 57,779.96/x
  3. Step 3: Cross multiply
    103,094.30x = 142,280.13 × 57,779.96
  4. Step 4: Simplify right side
    103,094.30x = 8,220,940,220.19
  5. Step 5: Solve for x
    x = 8,220,940,220.19/103,094.30
  6. Step 6: Final answer
    x = 79,741.95

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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.