Home / 186,312.32-279,461.60-81,131.52

Finding the Fourth Proportional to 186,312.32, 279,461.60 and 81,131.52

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Solution

The fourth proportional to 186,312.32, 279,461.60 and 81,131.52 is: 121,694.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,312.32 : 279,461.60 = 81,131.52 : x
  2. Step 2: Convert to fraction form
    186,312.32/279,461.60 = 81,131.52/x
  3. Step 3: Cross multiply
    186,312.32x = 279,461.60 × 81,131.52
  4. Step 4: Simplify right side
    186,312.32x = 22,673,144,389.63
  5. Step 5: Solve for x
    x = 22,673,144,389.63/186,312.32
  6. Step 6: Final answer
    x = 121,694.28

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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.