Home / 112,380.48-155,087.04-62,078.40

Finding the Fourth Proportional to 112,380.48, 155,087.04 and 62,078.40

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Solution

The fourth proportional to 112,380.48, 155,087.04 and 62,078.40 is: 85,669.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,380.48 : 155,087.04 = 62,078.40 : x
  2. Step 2: Convert to fraction form
    112,380.48/155,087.04 = 62,078.40/x
  3. Step 3: Cross multiply
    112,380.48x = 155,087.04 × 62,078.40
  4. Step 4: Simplify right side
    112,380.48x = 9,627,555,303.94
  5. Step 5: Solve for x
    x = 9,627,555,303.94/112,380.48
  6. Step 6: Final answer
    x = 85,669.28

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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.