Home / 127,789.13-176,350.16-70,430.50

Finding the Fourth Proportional to 127,789.13, 176,350.16 and 70,430.50

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Solution

The fourth proportional to 127,789.13, 176,350.16 and 70,430.50 is: 97,194.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,789.13 : 176,350.16 = 70,430.50 : x
  2. Step 2: Convert to fraction form
    127,789.13/176,350.16 = 70,430.50/x
  3. Step 3: Cross multiply
    127,789.13x = 176,350.16 × 70,430.50
  4. Step 4: Simplify right side
    127,789.13x = 12,420,430,340.39
  5. Step 5: Solve for x
    x = 12,420,430,340.39/127,789.13
  6. Step 6: Final answer
    x = 97,194.73

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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.