Home / 127,669.95-176,189.31-70,311.78

Finding the Fourth Proportional to 127,669.95, 176,189.31 and 70,311.78

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Solution

The fourth proportional to 127,669.95, 176,189.31 and 70,311.78 is: 97,032.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,669.95 : 176,189.31 = 70,311.78 : x
  2. Step 2: Convert to fraction form
    127,669.95/176,189.31 = 70,311.78/x
  3. Step 3: Cross multiply
    127,669.95x = 176,189.31 × 70,311.78
  4. Step 4: Simplify right side
    127,669.95x = 12,388,184,003.07
  5. Step 5: Solve for x
    x = 12,388,184,003.07/127,669.95
  6. Step 6: Final answer
    x = 97,032.89

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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.