Home / 128,114.47-176,797.31-71,525.85

Finding the Fourth Proportional to 128,114.47, 176,797.31 and 71,525.85

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Solution

The fourth proportional to 128,114.47, 176,797.31 and 71,525.85 is: 98,705.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,114.47 : 176,797.31 = 71,525.85 : x
  2. Step 2: Convert to fraction form
    128,114.47/176,797.31 = 71,525.85/x
  3. Step 3: Cross multiply
    128,114.47x = 176,797.31 × 71,525.85
  4. Step 4: Simplify right side
    128,114.47x = 12,645,577,875.46
  5. Step 5: Solve for x
    x = 12,645,577,875.46/128,114.47
  6. Step 6: Final answer
    x = 98,705.31

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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.