Home / 131,460.83-181,416.03-71,031.47

Finding the Fourth Proportional to 131,460.83, 181,416.03 and 71,031.47

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Solution

The fourth proportional to 131,460.83, 181,416.03 and 71,031.47 is: 98,023.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,460.83 : 181,416.03 = 71,031.47 : x
  2. Step 2: Convert to fraction form
    131,460.83/181,416.03 = 71,031.47/x
  3. Step 3: Cross multiply
    131,460.83x = 181,416.03 × 71,031.47
  4. Step 4: Simplify right side
    131,460.83x = 12,886,247,292.46
  5. Step 5: Solve for x
    x = 12,886,247,292.46/131,460.83
  6. Step 6: Final answer
    x = 98,023.47

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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.