Home / 97,725.40-146,415.30-86,666.20

Finding the Fourth Proportional to 97,725.40, 146,415.30 and 86,666.20

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Solution

The fourth proportional to 97,725.40, 146,415.30 and 86,666.20 is: 129,846.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,725.40 : 146,415.30 = 86,666.20 : x
  2. Step 2: Convert to fraction form
    97,725.40/146,415.30 = 86,666.20/x
  3. Step 3: Cross multiply
    97,725.40x = 146,415.30 × 86,666.20
  4. Step 4: Simplify right side
    97,725.40x = 12,689,257,672.86
  5. Step 5: Solve for x
    x = 12,689,257,672.86/97,725.40
  6. Step 6: Final answer
    x = 129,846.06

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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.