Home / 127,710.24-176,255.76-77,409.12

Finding the Fourth Proportional to 127,710.24, 176,255.76 and 77,409.12

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Solution

The fourth proportional to 127,710.24, 176,255.76 and 77,409.12 is: 106,834.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,710.24 : 176,255.76 = 77,409.12 : x
  2. Step 2: Convert to fraction form
    127,710.24/176,255.76 = 77,409.12/x
  3. Step 3: Cross multiply
    127,710.24x = 176,255.76 × 77,409.12
  4. Step 4: Simplify right side
    127,710.24x = 13,643,803,276.53
  5. Step 5: Solve for x
    x = 13,643,803,276.53/127,710.24
  6. Step 6: Final answer
    x = 106,834.06

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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.