Home / 112,938.98-169,619.08-99,434.92

Finding the Fourth Proportional to 112,938.98, 169,619.08 and 99,434.92

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Solution

The fourth proportional to 112,938.98, 169,619.08 and 99,434.92 is: 149,337.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,938.98 : 169,619.08 = 99,434.92 : x
  2. Step 2: Convert to fraction form
    112,938.98/169,619.08 = 99,434.92/x
  3. Step 3: Cross multiply
    112,938.98x = 169,619.08 × 99,434.92
  4. Step 4: Simplify right side
    112,938.98x = 16,866,059,650.27
  5. Step 5: Solve for x
    x = 16,866,059,650.27/112,938.98
  6. Step 6: Final answer
    x = 149,337.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.