Home / 219,177.01-302,461.72-128,514.25

Finding the Fourth Proportional to 219,177.01, 302,461.72 and 128,514.25

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Solution

The fourth proportional to 219,177.01, 302,461.72 and 128,514.25 is: 177,348.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,177.01 : 302,461.72 = 128,514.25 : x
  2. Step 2: Convert to fraction form
    219,177.01/302,461.72 = 128,514.25/x
  3. Step 3: Cross multiply
    219,177.01x = 302,461.72 × 128,514.25
  4. Step 4: Simplify right side
    219,177.01x = 38,870,641,099.51
  5. Step 5: Solve for x
    x = 38,870,641,099.51/219,177.01
  6. Step 6: Final answer
    x = 177,348.17

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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.