Home / 112,972.37-155,903.45-61,984.16

Finding the Fourth Proportional to 112,972.37, 155,903.45 and 61,984.16

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Solution

The fourth proportional to 112,972.37, 155,903.45 and 61,984.16 is: 85,539.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,972.37 : 155,903.45 = 61,984.16 : x
  2. Step 2: Convert to fraction form
    112,972.37/155,903.45 = 61,984.16/x
  3. Step 3: Cross multiply
    112,972.37x = 155,903.45 × 61,984.16
  4. Step 4: Simplify right side
    112,972.37x = 9,663,543,299.91
  5. Step 5: Solve for x
    x = 9,663,543,299.91/112,972.37
  6. Step 6: Final answer
    x = 85,539.00

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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.