Home / 131,031.80-196,547.70-129,865.40

Finding the Fourth Proportional to 131,031.80, 196,547.70 and 129,865.40

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Solution

The fourth proportional to 131,031.80, 196,547.70 and 129,865.40 is: 194,798.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,031.80 : 196,547.70 = 129,865.40 : x
  2. Step 2: Convert to fraction form
    131,031.80/196,547.70 = 129,865.40/x
  3. Step 3: Cross multiply
    131,031.80x = 196,547.70 × 129,865.40
  4. Step 4: Simplify right side
    131,031.80x = 25,524,745,679.58
  5. Step 5: Solve for x
    x = 25,524,745,679.58/131,031.80
  6. Step 6: Final answer
    x = 194,798.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.