Home / 132,685.16-183,109.01-72,258.35

Finding the Fourth Proportional to 132,685.16, 183,109.01 and 72,258.35

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Solution

The fourth proportional to 132,685.16, 183,109.01 and 72,258.35 is: 99,718.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,685.16 : 183,109.01 = 72,258.35 : x
  2. Step 2: Convert to fraction form
    132,685.16/183,109.01 = 72,258.35/x
  3. Step 3: Cross multiply
    132,685.16x = 183,109.01 × 72,258.35
  4. Step 4: Simplify right side
    132,685.16x = 13,231,153,655.90
  5. Step 5: Solve for x
    x = 13,231,153,655.90/132,685.16
  6. Step 6: Final answer
    x = 99,718.42

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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.