Home / 112,278.48-154,938.60-61,967.76

Finding the Fourth Proportional to 112,278.48, 154,938.60 and 61,967.76

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Solution

The fourth proportional to 112,278.48, 154,938.60 and 61,967.76 is: 85,512.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,278.48 : 154,938.60 = 61,967.76 : x
  2. Step 2: Convert to fraction form
    112,278.48/154,938.60 = 61,967.76/x
  3. Step 3: Cross multiply
    112,278.48x = 154,938.60 × 61,967.76
  4. Step 4: Simplify right side
    112,278.48x = 9,601,197,979.54
  5. Step 5: Solve for x
    x = 9,601,197,979.54/112,278.48
  6. Step 6: Final answer
    x = 85,512.36

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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.