Home / 127,144.32-175,458.60-70,555.56

Finding the Fourth Proportional to 127,144.32, 175,458.60 and 70,555.56

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Solution

The fourth proportional to 127,144.32, 175,458.60 and 70,555.56 is: 97,366.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,144.32 : 175,458.60 = 70,555.56 : x
  2. Step 2: Convert to fraction form
    127,144.32/175,458.60 = 70,555.56/x
  3. Step 3: Cross multiply
    127,144.32x = 175,458.60 × 70,555.56
  4. Step 4: Simplify right side
    127,144.32x = 12,379,579,779.82
  5. Step 5: Solve for x
    x = 12,379,579,779.82/127,144.32
  6. Step 6: Final answer
    x = 97,366.36

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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.