Home / 134,090.48-185,071.56-77,520.08

Finding the Fourth Proportional to 134,090.48, 185,071.56 and 77,520.08

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Solution

The fourth proportional to 134,090.48, 185,071.56 and 77,520.08 is: 106,993.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,090.48 : 185,071.56 = 77,520.08 : x
  2. Step 2: Convert to fraction form
    134,090.48/185,071.56 = 77,520.08/x
  3. Step 3: Cross multiply
    134,090.48x = 185,071.56 × 77,520.08
  4. Step 4: Simplify right side
    134,090.48x = 14,346,762,136.92
  5. Step 5: Solve for x
    x = 14,346,762,136.92/134,090.48
  6. Step 6: Final answer
    x = 106,993.14

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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.