Home / 112,856.94-155,733.99-61,861.50

Finding the Fourth Proportional to 112,856.94, 155,733.99 and 61,861.50

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Solution

The fourth proportional to 112,856.94, 155,733.99 and 61,861.50 is: 85,364.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,856.94 : 155,733.99 = 61,861.50 : x
  2. Step 2: Convert to fraction form
    112,856.94/155,733.99 = 61,861.50/x
  3. Step 3: Cross multiply
    112,856.94x = 155,733.99 × 61,861.50
  4. Step 4: Simplify right side
    112,856.94x = 9,633,938,222.39
  5. Step 5: Solve for x
    x = 9,633,938,222.39/112,856.94
  6. Step 6: Final answer
    x = 85,364.16

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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.