Home / 156,623.50-216,140.70-89,555.50

Finding the Fourth Proportional to 156,623.50, 216,140.70 and 89,555.50

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Solution

The fourth proportional to 156,623.50, 216,140.70 and 89,555.50 is: 123,586.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,623.50 : 216,140.70 = 89,555.50 : x
  2. Step 2: Convert to fraction form
    156,623.50/216,140.70 = 89,555.50/x
  3. Step 3: Cross multiply
    156,623.50x = 216,140.70 × 89,555.50
  4. Step 4: Simplify right side
    156,623.50x = 19,356,588,458.85
  5. Step 5: Solve for x
    x = 19,356,588,458.85/156,623.50
  6. Step 6: Final answer
    x = 123,586.74

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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.