Home / 123,834.57-170,892.36-70,130.04

Finding the Fourth Proportional to 123,834.57, 170,892.36 and 70,130.04

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Solution

The fourth proportional to 123,834.57, 170,892.36 and 70,130.04 is: 96,779.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,834.57 : 170,892.36 = 70,130.04 : x
  2. Step 2: Convert to fraction form
    123,834.57/170,892.36 = 70,130.04/x
  3. Step 3: Cross multiply
    123,834.57x = 170,892.36 × 70,130.04
  4. Step 4: Simplify right side
    123,834.57x = 11,984,688,042.49
  5. Step 5: Solve for x
    x = 11,984,688,042.49/123,834.57
  6. Step 6: Final answer
    x = 96,779.83

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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.