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Finding the Fourth Proportional to 101,804.70, 140,485.74 and 56,482.20

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Solution

The fourth proportional to 101,804.70, 140,485.74 and 56,482.20 is: 77,942.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,804.70 : 140,485.74 = 56,482.20 : x
  2. Step 2: Convert to fraction form
    101,804.70/140,485.74 = 56,482.20/x
  3. Step 3: Cross multiply
    101,804.70x = 140,485.74 × 56,482.20
  4. Step 4: Simplify right side
    101,804.70x = 7,934,943,663.83
  5. Step 5: Solve for x
    x = 7,934,943,663.83/101,804.70
  6. Step 6: Final answer
    x = 77,942.80

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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.