Home / 185,510.91-278,038.35-85,532.34

Finding the Fourth Proportional to 185,510.91, 278,038.35 and 85,532.34

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Solution

The fourth proportional to 185,510.91, 278,038.35 and 85,532.34 is: 128,193.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,510.91 : 278,038.35 = 85,532.34 : x
  2. Step 2: Convert to fraction form
    185,510.91/278,038.35 = 85,532.34/x
  3. Step 3: Cross multiply
    185,510.91x = 278,038.35 × 85,532.34
  4. Step 4: Simplify right side
    185,510.91x = 23,781,270,685.24
  5. Step 5: Solve for x
    x = 23,781,270,685.24/185,510.91
  6. Step 6: Final answer
    x = 128,193.38

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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.