Home / 112,009.60-154,573.20-61,708.60

Finding the Fourth Proportional to 112,009.60, 154,573.20 and 61,708.60

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Solution

The fourth proportional to 112,009.60, 154,573.20 and 61,708.60 is: 85,157.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,009.60 : 154,573.20 = 61,708.60 : x
  2. Step 2: Convert to fraction form
    112,009.60/154,573.20 = 61,708.60/x
  3. Step 3: Cross multiply
    112,009.60x = 154,573.20 × 61,708.60
  4. Step 4: Simplify right side
    112,009.60x = 9,538,495,769.52
  5. Step 5: Solve for x
    x = 9,538,495,769.52/112,009.60
  6. Step 6: Final answer
    x = 85,157.84

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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.