Home / 151,919.40-209,637.98-83,935.64

Finding the Fourth Proportional to 151,919.40, 209,637.98 and 83,935.64

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Solution

The fourth proportional to 151,919.40, 209,637.98 and 83,935.64 is: 115,825.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,919.40 : 209,637.98 = 83,935.64 : x
  2. Step 2: Convert to fraction form
    151,919.40/209,637.98 = 83,935.64/x
  3. Step 3: Cross multiply
    151,919.40x = 209,637.98 × 83,935.64
  4. Step 4: Simplify right side
    151,919.40x = 17,596,098,019.61
  5. Step 5: Solve for x
    x = 17,596,098,019.61/151,919.40
  6. Step 6: Final answer
    x = 115,825.22

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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.