Home / 123,294.06-170,145.87-85,590.18

Finding the Fourth Proportional to 123,294.06, 170,145.87 and 85,590.18

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Solution

The fourth proportional to 123,294.06, 170,145.87 and 85,590.18 is: 118,114.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,294.06 : 170,145.87 = 85,590.18 : x
  2. Step 2: Convert to fraction form
    123,294.06/170,145.87 = 85,590.18/x
  3. Step 3: Cross multiply
    123,294.06x = 170,145.87 × 85,590.18
  4. Step 4: Simplify right side
    123,294.06x = 14,562,815,639.56
  5. Step 5: Solve for x
    x = 14,562,815,639.56/123,294.06
  6. Step 6: Final answer
    x = 118,114.50

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1.5x scale

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.