Home / 129,908.38-179,274.10-70,292.38

Finding the Fourth Proportional to 129,908.38, 179,274.10 and 70,292.38

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Solution

The fourth proportional to 129,908.38, 179,274.10 and 70,292.38 is: 97,003.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,908.38 : 179,274.10 = 70,292.38 : x
  2. Step 2: Convert to fraction form
    129,908.38/179,274.10 = 70,292.38/x
  3. Step 3: Cross multiply
    129,908.38x = 179,274.10 × 70,292.38
  4. Step 4: Simplify right side
    129,908.38x = 12,601,602,264.99
  5. Step 5: Solve for x
    x = 12,601,602,264.99/129,908.38
  6. Step 6: Final answer
    x = 97,003.77

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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.