Home / 117,706.41-162,440.78-72,386.91

Finding the Fourth Proportional to 117,706.41, 162,440.78 and 72,386.91

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Solution

The fourth proportional to 117,706.41, 162,440.78 and 72,386.91 is: 99,897.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,706.41 : 162,440.78 = 72,386.91 : x
  2. Step 2: Convert to fraction form
    117,706.41/162,440.78 = 72,386.91/x
  3. Step 3: Cross multiply
    117,706.41x = 162,440.78 × 72,386.91
  4. Step 4: Simplify right side
    117,706.41x = 11,758,585,760.26
  5. Step 5: Solve for x
    x = 11,758,585,760.26/117,706.41
  6. Step 6: Final answer
    x = 99,897.58

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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.