Home / 153,421.78-230,164.11-64,675.45

Finding the Fourth Proportional to 153,421.78, 230,164.11 and 64,675.45

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Solution

The fourth proportional to 153,421.78, 230,164.11 and 64,675.45 is: 97,026.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,421.78 : 230,164.11 = 64,675.45 : x
  2. Step 2: Convert to fraction form
    153,421.78/230,164.11 = 64,675.45/x
  3. Step 3: Cross multiply
    153,421.78x = 230,164.11 × 64,675.45
  4. Step 4: Simplify right side
    153,421.78x = 14,885,967,388.10
  5. Step 5: Solve for x
    x = 14,885,967,388.10/153,421.78
  6. Step 6: Final answer
    x = 97,026.43

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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.