Home / 118,637.18-163,718.08-67,658.21

Finding the Fourth Proportional to 118,637.18, 163,718.08 and 67,658.21

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Solution

The fourth proportional to 118,637.18, 163,718.08 and 67,658.21 is: 93,367.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,637.18 : 163,718.08 = 67,658.21 : x
  2. Step 2: Convert to fraction form
    118,637.18/163,718.08 = 67,658.21/x
  3. Step 3: Cross multiply
    118,637.18x = 163,718.08 × 67,658.21
  4. Step 4: Simplify right side
    118,637.18x = 11,076,872,237.44
  5. Step 5: Solve for x
    x = 11,076,872,237.44/118,637.18
  6. Step 6: Final answer
    x = 93,367.63

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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.