Home / 181,689.90-272,502.45-115,010.70

Finding the Fourth Proportional to 181,689.90, 272,502.45 and 115,010.70

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Solution

The fourth proportional to 181,689.90, 272,502.45 and 115,010.70 is: 172,495.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,689.90 : 272,502.45 = 115,010.70 : x
  2. Step 2: Convert to fraction form
    181,689.90/272,502.45 = 115,010.70/x
  3. Step 3: Cross multiply
    181,689.90x = 272,502.45 × 115,010.70
  4. Step 4: Simplify right side
    181,689.90x = 31,340,697,526.22
  5. Step 5: Solve for x
    x = 31,340,697,526.22/181,689.90
  6. Step 6: Final answer
    x = 172,495.54

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1.5x scale

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.