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Finding the Fourth Proportional to 127,422.06, 175,853.07 and 70,838.70

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Solution

The fourth proportional to 127,422.06, 175,853.07 and 70,838.70 is: 97,763.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,422.06 : 175,853.07 = 70,838.70 : x
  2. Step 2: Convert to fraction form
    127,422.06/175,853.07 = 70,838.70/x
  3. Step 3: Cross multiply
    127,422.06x = 175,853.07 × 70,838.70
  4. Step 4: Simplify right side
    127,422.06x = 12,457,202,869.81
  5. Step 5: Solve for x
    x = 12,457,202,869.81/127,422.06
  6. Step 6: Final answer
    x = 97,763.31

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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.