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Finding the Fourth Proportional to 130,666.67, 195,952.95 and 45,254.40

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Solution

The fourth proportional to 130,666.67, 195,952.95 and 45,254.40 is: 67,865.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,666.67 : 195,952.95 = 45,254.40 : x
  2. Step 2: Convert to fraction form
    130,666.67/195,952.95 = 45,254.40/x
  3. Step 3: Cross multiply
    130,666.67x = 195,952.95 × 45,254.40
  4. Step 4: Simplify right side
    130,666.67x = 8,867,733,180.48
  5. Step 5: Solve for x
    x = 8,867,733,180.48/130,666.67
  6. Step 6: Final answer
    x = 67,865.30

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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.