Home / 108,021.70-162,032.55-74,779.30

Finding the Fourth Proportional to 108,021.70, 162,032.55 and 74,779.30

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Solution

The fourth proportional to 108,021.70, 162,032.55 and 74,779.30 is: 112,168.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,021.70 : 162,032.55 = 74,779.30 : x
  2. Step 2: Convert to fraction form
    108,021.70/162,032.55 = 74,779.30/x
  3. Step 3: Cross multiply
    108,021.70x = 162,032.55 × 74,779.30
  4. Step 4: Simplify right side
    108,021.70x = 12,116,680,666.22
  5. Step 5: Solve for x
    x = 12,116,680,666.22/108,021.70
  6. Step 6: Final answer
    x = 112,168.95

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1.5x scale

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.