Home / 151,760.43-209,440.98-83,790.45

Finding the Fourth Proportional to 151,760.43, 209,440.98 and 83,790.45

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Solution

The fourth proportional to 151,760.43, 209,440.98 and 83,790.45 is: 115,637.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,760.43 : 209,440.98 = 83,790.45 : x
  2. Step 2: Convert to fraction form
    151,760.43/209,440.98 = 83,790.45/x
  3. Step 3: Cross multiply
    151,760.43x = 209,440.98 × 83,790.45
  4. Step 4: Simplify right side
    151,760.43x = 17,549,153,962.64
  5. Step 5: Solve for x
    x = 17,549,153,962.64/151,760.43
  6. Step 6: Final answer
    x = 115,637.22

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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.