Home / 127,703.40-176,234.70-70,346.88

Finding the Fourth Proportional to 127,703.40, 176,234.70 and 70,346.88

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Solution

The fourth proportional to 127,703.40, 176,234.70 and 70,346.88 is: 97,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,703.40 : 176,234.70 = 70,346.88 : x
  2. Step 2: Convert to fraction form
    127,703.40/176,234.70 = 70,346.88/x
  3. Step 3: Cross multiply
    127,703.40x = 176,234.70 × 70,346.88
  4. Step 4: Simplify right side
    127,703.40x = 12,397,561,292.74
  5. Step 5: Solve for x
    x = 12,397,561,292.74/127,703.40
  6. Step 6: Final answer
    x = 97,080.90

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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.