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Finding the Fourth Proportional to 146,308.80, 201,895.20 and 82,646.40

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Solution

The fourth proportional to 146,308.80, 201,895.20 and 82,646.40 is: 114,045.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,308.80 : 201,895.20 = 82,646.40 : x
  2. Step 2: Convert to fraction form
    146,308.80/201,895.20 = 82,646.40/x
  3. Step 3: Cross multiply
    146,308.80x = 201,895.20 × 82,646.40
  4. Step 4: Simplify right side
    146,308.80x = 16,685,911,457.28
  5. Step 5: Solve for x
    x = 16,685,911,457.28/146,308.80
  6. Step 6: Final answer
    x = 114,045.85

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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.