Home / 216,636.93-298,962.90-121,141.58

Finding the Fourth Proportional to 216,636.93, 298,962.90 and 121,141.58

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Solution

The fourth proportional to 216,636.93, 298,962.90 and 121,141.58 is: 167,177.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,636.93 : 298,962.90 = 121,141.58 : x
  2. Step 2: Convert to fraction form
    216,636.93/298,962.90 = 121,141.58/x
  3. Step 3: Cross multiply
    216,636.93x = 298,962.90 × 121,141.58
  4. Step 4: Simplify right side
    216,636.93x = 36,216,836,572.57
  5. Step 5: Solve for x
    x = 36,216,836,572.57/216,636.93
  6. Step 6: Final answer
    x = 167,177.57

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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.