Home / 163,021.61-224,957.45-91,388.05

Finding the Fourth Proportional to 163,021.61, 224,957.45 and 91,388.05

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Solution

The fourth proportional to 163,021.61, 224,957.45 and 91,388.05 is: 126,108.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,021.61 : 224,957.45 = 91,388.05 : x
  2. Step 2: Convert to fraction form
    163,021.61/224,957.45 = 91,388.05/x
  3. Step 3: Cross multiply
    163,021.61x = 224,957.45 × 91,388.05
  4. Step 4: Simplify right side
    163,021.61x = 20,558,422,354.55
  5. Step 5: Solve for x
    x = 20,558,422,354.55/163,021.61
  6. Step 6: Final answer
    x = 126,108.57

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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.