Home / 156,378.47-215,802.56-84,758.27

Finding the Fourth Proportional to 156,378.47, 215,802.56 and 84,758.27

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Solution

The fourth proportional to 156,378.47, 215,802.56 and 84,758.27 is: 116,966.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,378.47 : 215,802.56 = 84,758.27 : x
  2. Step 2: Convert to fraction form
    156,378.47/215,802.56 = 84,758.27/x
  3. Step 3: Cross multiply
    156,378.47x = 215,802.56 × 84,758.27
  4. Step 4: Simplify right side
    156,378.47x = 18,291,050,780.05
  5. Step 5: Solve for x
    x = 18,291,050,780.05/156,378.47
  6. Step 6: Final answer
    x = 116,966.56

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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.