Home / 185,548.40-278,070.84-85,488.56

Finding the Fourth Proportional to 185,548.40, 278,070.84 and 85,488.56

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Solution

The fourth proportional to 185,548.40, 278,070.84 and 85,488.56 is: 128,116.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,548.40 : 278,070.84 = 85,488.56 : x
  2. Step 2: Convert to fraction form
    185,548.40/278,070.84 = 85,488.56/x
  3. Step 3: Cross multiply
    185,548.40x = 278,070.84 × 85,488.56
  4. Step 4: Simplify right side
    185,548.40x = 23,771,875,689.59
  5. Step 5: Solve for x
    x = 23,771,875,689.59/185,548.40
  6. Step 6: Final answer
    x = 128,116.85

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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.