Home / 185,390.10-278,085.15-101,117.70

Finding the Fourth Proportional to 185,390.10, 278,085.15 and 101,117.70

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Solution

The fourth proportional to 185,390.10, 278,085.15 and 101,117.70 is: 151,676.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,390.10 : 278,085.15 = 101,117.70 : x
  2. Step 2: Convert to fraction form
    185,390.10/278,085.15 = 101,117.70/x
  3. Step 3: Cross multiply
    185,390.10x = 278,085.15 × 101,117.70
  4. Step 4: Simplify right side
    185,390.10x = 28,119,330,772.16
  5. Step 5: Solve for x
    x = 28,119,330,772.16/185,390.10
  6. Step 6: Final answer
    x = 151,676.55

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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.