Home / 185,646.18-278,424.69-85,710.36

Finding the Fourth Proportional to 185,646.18, 278,424.69 and 85,710.36

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Solution

The fourth proportional to 185,646.18, 278,424.69 and 85,710.36 is: 128,544.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,646.18 : 278,424.69 = 85,710.36 : x
  2. Step 2: Convert to fraction form
    185,646.18/278,424.69 = 85,710.36/x
  3. Step 3: Cross multiply
    185,646.18x = 278,424.69 × 85,710.36
  4. Step 4: Simplify right side
    185,646.18x = 23,863,880,412.79
  5. Step 5: Solve for x
    x = 23,863,880,412.79/185,646.18
  6. Step 6: Final answer
    x = 128,544.96

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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.