Home / 136,037.48-187,696.86-79,416.32

Finding the Fourth Proportional to 136,037.48, 187,696.86 and 79,416.32

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Solution

The fourth proportional to 136,037.48, 187,696.86 and 79,416.32 is: 109,574.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,037.48 : 187,696.86 = 79,416.32 : x
  2. Step 2: Convert to fraction form
    136,037.48/187,696.86 = 79,416.32/x
  3. Step 3: Cross multiply
    136,037.48x = 187,696.86 × 79,416.32
  4. Step 4: Simplify right side
    136,037.48x = 14,906,193,896.76
  5. Step 5: Solve for x
    x = 14,906,193,896.76/136,037.48
  6. Step 6: Final answer
    x = 109,574.17

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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.