Home / 156,730.20-216,287.67-89,662.20

Finding the Fourth Proportional to 156,730.20, 216,287.67 and 89,662.20

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Solution

The fourth proportional to 156,730.20, 216,287.67 and 89,662.20 is: 123,733.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,730.20 : 216,287.67 = 89,662.20 : x
  2. Step 2: Convert to fraction form
    156,730.20/216,287.67 = 89,662.20/x
  3. Step 3: Cross multiply
    156,730.20x = 216,287.67 × 89,662.20
  4. Step 4: Simplify right side
    156,730.20x = 19,392,828,325.07
  5. Step 5: Solve for x
    x = 19,392,828,325.07/156,730.20
  6. Step 6: Final answer
    x = 123,733.83

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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.