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Finding the Fourth Proportional to 101,637.62, 140,256.69 and 56,317.94

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Solution

The fourth proportional to 101,637.62, 140,256.69 and 56,317.94 is: 77,716.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,637.62 : 140,256.69 = 56,317.94 : x
  2. Step 2: Convert to fraction form
    101,637.62/140,256.69 = 56,317.94/x
  3. Step 3: Cross multiply
    101,637.62x = 140,256.69 × 56,317.94
  4. Step 4: Simplify right side
    101,637.62x = 7,898,967,852.02
  5. Step 5: Solve for x
    x = 7,898,967,852.02/101,637.62
  6. Step 6: Final answer
    x = 77,716.97

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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.