Home / 151,534.53-209,118.78-83,553.93

Finding the Fourth Proportional to 151,534.53, 209,118.78 and 83,553.93

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Solution

The fourth proportional to 151,534.53, 209,118.78 and 83,553.93 is: 115,305.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,534.53 : 209,118.78 = 83,553.93 : x
  2. Step 2: Convert to fraction form
    151,534.53/209,118.78 = 83,553.93/x
  3. Step 3: Cross multiply
    151,534.53x = 209,118.78 × 83,553.93
  4. Step 4: Simplify right side
    151,534.53x = 17,472,695,905.81
  5. Step 5: Solve for x
    x = 17,472,695,905.81/151,534.53
  6. Step 6: Final answer
    x = 115,305.05

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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.