Home / 112,518.40-155,272.32-62,215.68

Finding the Fourth Proportional to 112,518.40, 155,272.32 and 62,215.68

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Solution

The fourth proportional to 112,518.40, 155,272.32 and 62,215.68 is: 85,855.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,518.40 : 155,272.32 = 62,215.68 : x
  2. Step 2: Convert to fraction form
    112,518.40/155,272.32 = 62,215.68/x
  3. Step 3: Cross multiply
    112,518.40x = 155,272.32 × 62,215.68
  4. Step 4: Simplify right side
    112,518.40x = 9,660,372,973.98
  5. Step 5: Solve for x
    x = 9,660,372,973.98/112,518.40
  6. Step 6: Final answer
    x = 85,855.94

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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.