Home / 156,934.88-216,574.38-85,319.72

Finding the Fourth Proportional to 156,934.88, 216,574.38 and 85,319.72

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Solution

The fourth proportional to 156,934.88, 216,574.38 and 85,319.72 is: 117,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,934.88 : 216,574.38 = 85,319.72 : x
  2. Step 2: Convert to fraction form
    156,934.88/216,574.38 = 85,319.72/x
  3. Step 3: Cross multiply
    156,934.88x = 216,574.38 × 85,319.72
  4. Step 4: Simplify right side
    156,934.88x = 18,478,065,460.77
  5. Step 5: Solve for x
    x = 18,478,065,460.77/156,934.88
  6. Step 6: Final answer
    x = 117,743.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.