Home / 127,857.90-176,445.09-70,499.28

Finding the Fourth Proportional to 127,857.90, 176,445.09 and 70,499.28

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Solution

The fourth proportional to 127,857.90, 176,445.09 and 70,499.28 is: 97,289.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,857.90 : 176,445.09 = 70,499.28 : x
  2. Step 2: Convert to fraction form
    127,857.90/176,445.09 = 70,499.28/x
  3. Step 3: Cross multiply
    127,857.90x = 176,445.09 × 70,499.28
  4. Step 4: Simplify right side
    127,857.90x = 12,439,251,804.54
  5. Step 5: Solve for x
    x = 12,439,251,804.54/127,857.90
  6. Step 6: Final answer
    x = 97,289.66

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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.