Home / 112,416.80-155,135.58-61,429.52

Finding the Fourth Proportional to 112,416.80, 155,135.58 and 61,429.52

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Solution

The fourth proportional to 112,416.80, 155,135.58 and 61,429.52 is: 84,772.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,416.80 : 155,135.58 = 61,429.52 : x
  2. Step 2: Convert to fraction form
    112,416.80/155,135.58 = 61,429.52/x
  3. Step 3: Cross multiply
    112,416.80x = 155,135.58 × 61,429.52
  4. Step 4: Simplify right side
    112,416.80x = 9,529,904,544.57
  5. Step 5: Solve for x
    x = 9,529,904,544.57/112,416.80
  6. Step 6: Final answer
    x = 84,772.96

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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.