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Finding the Fourth Proportional to 163,007.76, 224,690.88 and 128,496.25

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Solution

The fourth proportional to 163,007.76, 224,690.88 and 128,496.25 is: 177,120.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,007.76 : 224,690.88 = 128,496.25 : x
  2. Step 2: Convert to fraction form
    163,007.76/224,690.88 = 128,496.25/x
  3. Step 3: Cross multiply
    163,007.76x = 224,690.88 × 128,496.25
  4. Step 4: Simplify right side
    163,007.76x = 28,871,933,723.26
  5. Step 5: Solve for x
    x = 28,871,933,723.26/163,007.76
  6. Step 6: Final answer
    x = 177,120.00

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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.