Home / 120,731.95-181,287.48-102,254.23

Finding the Fourth Proportional to 120,731.95, 181,287.48 and 102,254.23

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Solution

The fourth proportional to 120,731.95, 181,287.48 and 102,254.23 is: 153,541.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,731.95 : 181,287.48 = 102,254.23 : x
  2. Step 2: Convert to fraction form
    120,731.95/181,287.48 = 102,254.23/x
  3. Step 3: Cross multiply
    120,731.95x = 181,287.48 × 102,254.23
  4. Step 4: Simplify right side
    120,731.95x = 18,537,411,676.04
  5. Step 5: Solve for x
    x = 18,537,411,676.04/120,731.95
  6. Step 6: Final answer
    x = 153,541.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.