Home / 145,715.49-218,554.09-45,876.20

Finding the Fourth Proportional to 145,715.49, 218,554.09 and 45,876.20

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Solution

The fourth proportional to 145,715.49, 218,554.09 and 45,876.20 is: 68,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,715.49 : 218,554.09 = 45,876.20 : x
  2. Step 2: Convert to fraction form
    145,715.49/218,554.09 = 45,876.20/x
  3. Step 3: Cross multiply
    145,715.49x = 218,554.09 × 45,876.20
  4. Step 4: Simplify right side
    145,715.49x = 10,026,430,914.28
  5. Step 5: Solve for x
    x = 10,026,430,914.28/145,715.49
  6. Step 6: Final answer
    x = 68,808.27

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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.