Home / 145,569.15-200,869.14-81,905.58

Finding the Fourth Proportional to 145,569.15, 200,869.14 and 81,905.58

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Solution

The fourth proportional to 145,569.15, 200,869.14 and 81,905.58 is: 113,020.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,569.15 : 200,869.14 = 81,905.58 : x
  2. Step 2: Convert to fraction form
    145,569.15/200,869.14 = 81,905.58/x
  3. Step 3: Cross multiply
    145,569.15x = 200,869.14 × 81,905.58
  4. Step 4: Simplify right side
    145,569.15x = 16,452,303,415.80
  5. Step 5: Solve for x
    x = 16,452,303,415.80/145,569.15
  6. Step 6: Final answer
    x = 113,020.54

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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.