Home / 128,222.14-176,947.10-70,080.04

Finding the Fourth Proportional to 128,222.14, 176,947.10 and 70,080.04

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Solution

The fourth proportional to 128,222.14, 176,947.10 and 70,080.04 is: 96,710.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,222.14 : 176,947.10 = 70,080.04 : x
  2. Step 2: Convert to fraction form
    128,222.14/176,947.10 = 70,080.04/x
  3. Step 3: Cross multiply
    128,222.14x = 176,947.10 × 70,080.04
  4. Step 4: Simplify right side
    128,222.14x = 12,400,459,845.88
  5. Step 5: Solve for x
    x = 12,400,459,845.88/128,222.14
  6. Step 6: Final answer
    x = 96,710.75

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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.