Home / 131,700.45-181,746.62-71,271.09

Finding the Fourth Proportional to 131,700.45, 181,746.62 and 71,271.09

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Solution

The fourth proportional to 131,700.45, 181,746.62 and 71,271.09 is: 98,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,700.45 : 181,746.62 = 71,271.09 : x
  2. Step 2: Convert to fraction form
    131,700.45/181,746.62 = 71,271.09/x
  3. Step 3: Cross multiply
    131,700.45x = 181,746.62 × 71,271.09
  4. Step 4: Simplify right side
    131,700.45x = 12,953,279,711.22
  5. Step 5: Solve for x
    x = 12,953,279,711.22/131,700.45
  6. Step 6: Final answer
    x = 98,354.10

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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.