Home / 140,731.02-194,210.46-77,071.50

Finding the Fourth Proportional to 140,731.02, 194,210.46 and 77,071.50

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Solution

The fourth proportional to 140,731.02, 194,210.46 and 77,071.50 is: 106,359.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,731.02 : 194,210.46 = 77,071.50 : x
  2. Step 2: Convert to fraction form
    140,731.02/194,210.46 = 77,071.50/x
  3. Step 3: Cross multiply
    140,731.02x = 194,210.46 × 77,071.50
  4. Step 4: Simplify right side
    140,731.02x = 14,968,091,467.89
  5. Step 5: Solve for x
    x = 14,968,091,467.89/140,731.02
  6. Step 6: Final answer
    x = 106,359.57

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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.