Home / 151,752.90-209,410.05-83,768.20

Finding the Fourth Proportional to 151,752.90, 209,410.05 and 83,768.20

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Solution

The fourth proportional to 151,752.90, 209,410.05 and 83,768.20 is: 115,595.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,752.90 : 209,410.05 = 83,768.20 : x
  2. Step 2: Convert to fraction form
    151,752.90/209,410.05 = 83,768.20/x
  3. Step 3: Cross multiply
    151,752.90x = 209,410.05 × 83,768.20
  4. Step 4: Simplify right side
    151,752.90x = 17,541,902,950.41
  5. Step 5: Solve for x
    x = 17,541,902,950.41/151,752.90
  6. Step 6: Final answer
    x = 115,595.17

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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.