Home / 127,639.76-176,148.94-71,051.12

Finding the Fourth Proportional to 127,639.76, 176,148.94 and 71,051.12

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Solution

The fourth proportional to 127,639.76, 176,148.94 and 71,051.12 is: 98,053.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,639.76 : 176,148.94 = 71,051.12 : x
  2. Step 2: Convert to fraction form
    127,639.76/176,148.94 = 71,051.12/x
  3. Step 3: Cross multiply
    127,639.76x = 176,148.94 × 71,051.12
  4. Step 4: Simplify right side
    127,639.76x = 12,515,579,473.81
  5. Step 5: Solve for x
    x = 12,515,579,473.81/127,639.76
  6. Step 6: Final answer
    x = 98,053.93

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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.