Home / 118,421.73-163,422.86-64,706.72

Finding the Fourth Proportional to 118,421.73, 163,422.86 and 64,706.72

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Solution

The fourth proportional to 118,421.73, 163,422.86 and 64,706.72 is: 89,295.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,421.73 : 163,422.86 = 64,706.72 : x
  2. Step 2: Convert to fraction form
    118,421.73/163,422.86 = 64,706.72/x
  3. Step 3: Cross multiply
    118,421.73x = 163,422.86 × 64,706.72
  4. Step 4: Simplify right side
    118,421.73x = 10,574,556,102.97
  5. Step 5: Solve for x
    x = 10,574,556,102.97/118,421.73
  6. Step 6: Final answer
    x = 89,295.74

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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.