Home / 127,538.24-176,018.40-77,237.12

Finding the Fourth Proportional to 127,538.24, 176,018.40 and 77,237.12

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Solution

The fourth proportional to 127,538.24, 176,018.40 and 77,237.12 is: 106,596.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,538.24 : 176,018.40 = 77,237.12 : x
  2. Step 2: Convert to fraction form
    127,538.24/176,018.40 = 77,237.12/x
  3. Step 3: Cross multiply
    127,538.24x = 176,018.40 × 77,237.12
  4. Step 4: Simplify right side
    127,538.24x = 13,595,154,283.01
  5. Step 5: Solve for x
    x = 13,595,154,283.01/127,538.24
  6. Step 6: Final answer
    x = 106,596.69

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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.