Home / 126,056.40-189,084.60-112,278.30

Finding the Fourth Proportional to 126,056.40, 189,084.60 and 112,278.30

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Solution

The fourth proportional to 126,056.40, 189,084.60 and 112,278.30 is: 168,417.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,056.40 : 189,084.60 = 112,278.30 : x
  2. Step 2: Convert to fraction form
    126,056.40/189,084.60 = 112,278.30/x
  3. Step 3: Cross multiply
    126,056.40x = 189,084.60 × 112,278.30
  4. Step 4: Simplify right side
    126,056.40x = 21,230,097,444.18
  5. Step 5: Solve for x
    x = 21,230,097,444.18/126,056.40
  6. Step 6: Final answer
    x = 168,417.45

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1.5x scale

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.