Home / 123,718.92-185,487.50-39,430.58

Finding the Fourth Proportional to 123,718.92, 185,487.50 and 39,430.58

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Solution

The fourth proportional to 123,718.92, 185,487.50 and 39,430.58 is: 59,116.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,718.92 : 185,487.50 = 39,430.58 : x
  2. Step 2: Convert to fraction form
    123,718.92/185,487.50 = 39,430.58/x
  3. Step 3: Cross multiply
    123,718.92x = 185,487.50 × 39,430.58
  4. Step 4: Simplify right side
    123,718.92x = 7,313,879,707.75
  5. Step 5: Solve for x
    x = 7,313,879,707.75/123,718.92
  6. Step 6: Final answer
    x = 59,116.91

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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.