Home / 127,740.32-176,281.69-74,056.45

Finding the Fourth Proportional to 127,740.32, 176,281.69 and 74,056.45

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Solution

The fourth proportional to 127,740.32, 176,281.69 and 74,056.45 is: 102,197.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,740.32 : 176,281.69 = 74,056.45 : x
  2. Step 2: Convert to fraction form
    127,740.32/176,281.69 = 74,056.45/x
  3. Step 3: Cross multiply
    127,740.32x = 176,281.69 × 74,056.45
  4. Step 4: Simplify right side
    127,740.32x = 13,054,796,161.40
  5. Step 5: Solve for x
    x = 13,054,796,161.40/127,740.32
  6. Step 6: Final answer
    x = 102,197.93

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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.