Home / 127,479.10-175,929.81-84,384.38

Finding the Fourth Proportional to 127,479.10, 175,929.81 and 84,384.38

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Solution

The fourth proportional to 127,479.10, 175,929.81 and 84,384.38 is: 116,456.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,479.10 : 175,929.81 = 84,384.38 : x
  2. Step 2: Convert to fraction form
    127,479.10/175,929.81 = 84,384.38/x
  3. Step 3: Cross multiply
    127,479.10x = 175,929.81 × 84,384.38
  4. Step 4: Simplify right side
    127,479.10x = 14,845,727,940.37
  5. Step 5: Solve for x
    x = 14,845,727,940.37/127,479.10
  6. Step 6: Final answer
    x = 116,456.17

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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.