Home / 156,651.30-216,178.07-85,030.70

Finding the Fourth Proportional to 156,651.30, 216,178.07 and 85,030.70

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Solution

The fourth proportional to 156,651.30, 216,178.07 and 85,030.70 is: 117,341.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,651.30 : 216,178.07 = 85,030.70 : x
  2. Step 2: Convert to fraction form
    156,651.30/216,178.07 = 85,030.70/x
  3. Step 3: Cross multiply
    156,651.30x = 216,178.07 × 85,030.70
  4. Step 4: Simplify right side
    156,651.30x = 18,381,771,110.71
  5. Step 5: Solve for x
    x = 18,381,771,110.71/156,651.30
  6. Step 6: Final answer
    x = 117,341.96

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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.