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Finding the Fourth Proportional to 101,459.34, 140,005.02 and 56,136.60

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Solution

The fourth proportional to 101,459.34, 140,005.02 and 56,136.60 is: 77,463.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,459.34 : 140,005.02 = 56,136.60 : x
  2. Step 2: Convert to fraction form
    101,459.34/140,005.02 = 56,136.60/x
  3. Step 3: Cross multiply
    101,459.34x = 140,005.02 × 56,136.60
  4. Step 4: Simplify right side
    101,459.34x = 7,859,405,805.73
  5. Step 5: Solve for x
    x = 7,859,405,805.73/101,459.34
  6. Step 6: Final answer
    x = 77,463.60

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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.