Home / 112,607.50-155,400.32-61,624.75

Finding the Fourth Proportional to 112,607.50, 155,400.32 and 61,624.75

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Solution

The fourth proportional to 112,607.50, 155,400.32 and 61,624.75 is: 85,043.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,607.50 : 155,400.32 = 61,624.75 : x
  2. Step 2: Convert to fraction form
    112,607.50/155,400.32 = 61,624.75/x
  3. Step 3: Cross multiply
    112,607.50x = 155,400.32 × 61,624.75
  4. Step 4: Simplify right side
    112,607.50x = 9,576,505,869.92
  5. Step 5: Solve for x
    x = 9,576,505,869.92/112,607.50
  6. Step 6: Final answer
    x = 85,043.23

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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.