Home / 219,031.10-302,265.77-127,171.92

Finding the Fourth Proportional to 219,031.10, 302,265.77 and 127,171.92

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Solution

The fourth proportional to 219,031.10, 302,265.77 and 127,171.92 is: 175,498.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,031.10 : 302,265.77 = 127,171.92 : x
  2. Step 2: Convert to fraction form
    219,031.10/302,265.77 = 127,171.92/x
  3. Step 3: Cross multiply
    219,031.10x = 302,265.77 × 127,171.92
  4. Step 4: Simplify right side
    219,031.10x = 38,439,718,639.11
  5. Step 5: Solve for x
    x = 38,439,718,639.11/219,031.10
  6. Step 6: Final answer
    x = 175,498.90

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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.