Home / 127,858.08-176,446.50-71,263.38

Finding the Fourth Proportional to 127,858.08, 176,446.50 and 71,263.38

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Solution

The fourth proportional to 127,858.08, 176,446.50 and 71,263.38 is: 98,344.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,858.08 : 176,446.50 = 71,263.38 : x
  2. Step 2: Convert to fraction form
    127,858.08/176,446.50 = 71,263.38/x
  3. Step 3: Cross multiply
    127,858.08x = 176,446.50 × 71,263.38
  4. Step 4: Simplify right side
    127,858.08x = 12,574,173,979.17
  5. Step 5: Solve for x
    x = 12,574,173,979.17/127,858.08
  6. Step 6: Final answer
    x = 98,344.77

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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.