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Finding the Fourth Proportional to 129,762.16, 179,072.04 and 70,146.16

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Solution

The fourth proportional to 129,762.16, 179,072.04 and 70,146.16 is: 96,801.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,762.16 : 179,072.04 = 70,146.16 : x
  2. Step 2: Convert to fraction form
    129,762.16/179,072.04 = 70,146.16/x
  3. Step 3: Cross multiply
    129,762.16x = 179,072.04 × 70,146.16
  4. Step 4: Simplify right side
    129,762.16x = 12,561,215,969.37
  5. Step 5: Solve for x
    x = 12,561,215,969.37/129,762.16
  6. Step 6: Final answer
    x = 96,801.84

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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.