Home / 127,791.83-176,345.54-70,430.98

Finding the Fourth Proportional to 127,791.83, 176,345.54 and 70,430.98

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Solution

The fourth proportional to 127,791.83, 176,345.54 and 70,430.98 is: 97,190.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,791.83 : 176,345.54 = 70,430.98 : x
  2. Step 2: Convert to fraction form
    127,791.83/176,345.54 = 70,430.98/x
  3. Step 3: Cross multiply
    127,791.83x = 176,345.54 × 70,430.98
  4. Step 4: Simplify right side
    127,791.83x = 12,420,188,407.81
  5. Step 5: Solve for x
    x = 12,420,188,407.81/127,791.83
  6. Step 6: Final answer
    x = 97,190.78

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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.