Home / 131,090.23-180,919.88-74,510.11

Finding the Fourth Proportional to 131,090.23, 180,919.88 and 74,510.11

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Solution

The fourth proportional to 131,090.23, 180,919.88 and 74,510.11 is: 102,832.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,090.23 : 180,919.88 = 74,510.11 : x
  2. Step 2: Convert to fraction form
    131,090.23/180,919.88 = 74,510.11/x
  3. Step 3: Cross multiply
    131,090.23x = 180,919.88 × 74,510.11
  4. Step 4: Simplify right side
    131,090.23x = 13,480,360,159.99
  5. Step 5: Solve for x
    x = 13,480,360,159.99/131,090.23
  6. Step 6: Final answer
    x = 102,832.68

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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.