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Finding the Fourth Proportional to 101,740.67, 140,395.26 and 56,416.98

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Solution

The fourth proportional to 101,740.67, 140,395.26 and 56,416.98 is: 77,851.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,740.67 : 140,395.26 = 56,416.98 : x
  2. Step 2: Convert to fraction form
    101,740.67/140,395.26 = 56,416.98/x
  3. Step 3: Cross multiply
    101,740.67x = 140,395.26 × 56,416.98
  4. Step 4: Simplify right side
    101,740.67x = 7,920,676,575.51
  5. Step 5: Solve for x
    x = 7,920,676,575.51/101,740.67
  6. Step 6: Final answer
    x = 77,851.63

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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.