Home / 153,012.10-211,152.46-85,027.31

Finding the Fourth Proportional to 153,012.10, 211,152.46 and 85,027.31

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Solution

The fourth proportional to 153,012.10, 211,152.46 and 85,027.31 is: 117,335.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,012.10 : 211,152.46 = 85,027.31 : x
  2. Step 2: Convert to fraction form
    153,012.10/211,152.46 = 85,027.31/x
  3. Step 3: Cross multiply
    153,012.10x = 211,152.46 × 85,027.31
  4. Step 4: Simplify right side
    153,012.10x = 17,953,725,673.68
  5. Step 5: Solve for x
    x = 17,953,725,673.68/153,012.10
  6. Step 6: Final answer
    x = 117,335.33

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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.