Home / 121,567.42-167,778.90-67,863.58

Finding the Fourth Proportional to 121,567.42, 167,778.90 and 67,863.58

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Solution

The fourth proportional to 121,567.42, 167,778.90 and 67,863.58 is: 93,660.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,567.42 : 167,778.90 = 67,863.58 : x
  2. Step 2: Convert to fraction form
    121,567.42/167,778.90 = 67,863.58/x
  3. Step 3: Cross multiply
    121,567.42x = 167,778.90 × 67,863.58
  4. Step 4: Simplify right side
    121,567.42x = 11,386,076,802.46
  5. Step 5: Solve for x
    x = 11,386,076,802.46/121,567.42
  6. Step 6: Final answer
    x = 93,660.59

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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.