Home / 98,666.78-147,987.35-39,503.03

Finding the Fourth Proportional to 98,666.78, 147,987.35 and 39,503.03

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Solution

The fourth proportional to 98,666.78, 147,987.35 and 39,503.03 is: 59,249.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,666.78 : 147,987.35 = 39,503.03 : x
  2. Step 2: Convert to fraction form
    98,666.78/147,987.35 = 39,503.03/x
  3. Step 3: Cross multiply
    98,666.78x = 147,987.35 × 39,503.03
  4. Step 4: Simplify right side
    98,666.78x = 5,845,948,529.16
  5. Step 5: Solve for x
    x = 5,845,948,529.16/98,666.78
  6. Step 6: Final answer
    x = 59,249.41

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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.