Home / 112,299.61-154,999.48-64,580.49

Finding the Fourth Proportional to 112,299.61, 154,999.48 and 64,580.49

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Solution

The fourth proportional to 112,299.61, 154,999.48 and 64,580.49 is: 89,136.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,299.61 : 154,999.48 = 64,580.49 : x
  2. Step 2: Convert to fraction form
    112,299.61/154,999.48 = 64,580.49/x
  3. Step 3: Cross multiply
    112,299.61x = 154,999.48 × 64,580.49
  4. Step 4: Simplify right side
    112,299.61x = 10,009,942,368.15
  5. Step 5: Solve for x
    x = 10,009,942,368.15/112,299.61
  6. Step 6: Final answer
    x = 89,136.04

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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.