Home / 219,283.60-302,613.89-128,641.11

Finding the Fourth Proportional to 219,283.60, 302,613.89 and 128,641.11

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Solution

The fourth proportional to 219,283.60, 302,613.89 and 128,641.11 is: 177,526.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,283.60 : 302,613.89 = 128,641.11 : x
  2. Step 2: Convert to fraction form
    219,283.60/302,613.89 = 128,641.11/x
  3. Step 3: Cross multiply
    219,283.60x = 302,613.89 × 128,641.11
  4. Step 4: Simplify right side
    219,283.60x = 38,928,585,197.95
  5. Step 5: Solve for x
    x = 38,928,585,197.95/219,283.60
  6. Step 6: Final answer
    x = 177,526.21

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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.