Home / 141,528.30-212,117.49-71,369.34

Finding the Fourth Proportional to 141,528.30, 212,117.49 and 71,369.34

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Solution

The fourth proportional to 141,528.30, 212,117.49 and 71,369.34 is: 106,965.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,528.30 : 212,117.49 = 71,369.34 : x
  2. Step 2: Convert to fraction form
    141,528.30/212,117.49 = 71,369.34/x
  3. Step 3: Cross multiply
    141,528.30x = 212,117.49 × 71,369.34
  4. Step 4: Simplify right side
    141,528.30x = 15,138,685,263.76
  5. Step 5: Solve for x
    x = 15,138,685,263.76/141,528.30
  6. Step 6: Final answer
    x = 106,965.78

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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.