Home / 101,610.07-140,220.38-56,287.91

Finding the Fourth Proportional to 101,610.07, 140,220.38 and 56,287.91

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Solution

The fourth proportional to 101,610.07, 140,220.38 and 56,287.91 is: 77,676.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,610.07 : 140,220.38 = 56,287.91 : x
  2. Step 2: Convert to fraction form
    101,610.07/140,220.38 = 56,287.91/x
  3. Step 3: Cross multiply
    101,610.07x = 140,220.38 × 56,287.91
  4. Step 4: Simplify right side
    101,610.07x = 7,892,711,848.17
  5. Step 5: Solve for x
    x = 7,892,711,848.17/101,610.07
  6. Step 6: Final answer
    x = 77,676.48

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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.