Home / 188,426.40-282,607.20-70,036.80

Finding the Fourth Proportional to 188,426.40, 282,607.20 and 70,036.80

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Solution

The fourth proportional to 188,426.40, 282,607.20 and 70,036.80 is: 105,043.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,426.40 : 282,607.20 = 70,036.80 : x
  2. Step 2: Convert to fraction form
    188,426.40/282,607.20 = 70,036.80/x
  3. Step 3: Cross multiply
    188,426.40x = 282,607.20 × 70,036.80
  4. Step 4: Simplify right side
    188,426.40x = 19,792,903,944.96
  5. Step 5: Solve for x
    x = 19,792,903,944.96/188,426.40
  6. Step 6: Final answer
    x = 105,043.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.