Home / 156,572.18-216,068.68-84,950.66

Finding the Fourth Proportional to 156,572.18, 216,068.68 and 84,950.66

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Solution

The fourth proportional to 156,572.18, 216,068.68 and 84,950.66 is: 117,231.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,572.18 : 216,068.68 = 84,950.66 : x
  2. Step 2: Convert to fraction form
    156,572.18/216,068.68 = 84,950.66/x
  3. Step 3: Cross multiply
    156,572.18x = 216,068.68 × 84,950.66
  4. Step 4: Simplify right side
    156,572.18x = 18,355,176,971.33
  5. Step 5: Solve for x
    x = 18,355,176,971.33/156,572.18
  6. Step 6: Final answer
    x = 117,231.41

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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.