Home / 112,938.78-169,364.97-38,038.77

Finding the Fourth Proportional to 112,938.78, 169,364.97 and 38,038.77

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Solution

The fourth proportional to 112,938.78, 169,364.97 and 38,038.77 is: 57,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,938.78 : 169,364.97 = 38,038.77 : x
  2. Step 2: Convert to fraction form
    112,938.78/169,364.97 = 38,038.77/x
  3. Step 3: Cross multiply
    112,938.78x = 169,364.97 × 38,038.77
  4. Step 4: Simplify right side
    112,938.78x = 6,442,435,139.89
  5. Step 5: Solve for x
    x = 6,442,435,139.89/112,938.78
  6. Step 6: Final answer
    x = 57,043.60

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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.