Home / 113,722.70-156,886.59-65,948.36

Finding the Fourth Proportional to 113,722.70, 156,886.59 and 65,948.36

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Solution

The fourth proportional to 113,722.70, 156,886.59 and 65,948.36 is: 90,979.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,722.70 : 156,886.59 = 65,948.36 : x
  2. Step 2: Convert to fraction form
    113,722.70/156,886.59 = 65,948.36/x
  3. Step 3: Cross multiply
    113,722.70x = 156,886.59 × 65,948.36
  4. Step 4: Simplify right side
    113,722.70x = 10,346,412,532.06
  5. Step 5: Solve for x
    x = 10,346,412,532.06/113,722.70
  6. Step 6: Final answer
    x = 90,979.31

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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.