Home / 127,711.10-176,220.23-77,410.10

Finding the Fourth Proportional to 127,711.10, 176,220.23 and 77,410.10

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Solution

The fourth proportional to 127,711.10, 176,220.23 and 77,410.10 is: 106,813.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,711.10 : 176,220.23 = 77,410.10 : x
  2. Step 2: Convert to fraction form
    127,711.10/176,220.23 = 77,410.10/x
  3. Step 3: Cross multiply
    127,711.10x = 176,220.23 × 77,410.10
  4. Step 4: Simplify right side
    127,711.10x = 13,641,225,679.82
  5. Step 5: Solve for x
    x = 13,641,225,679.82/127,711.10
  6. Step 6: Final answer
    x = 106,813.15

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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.