Home / 146,055.90-218,646.45-86,861.10

Finding the Fourth Proportional to 146,055.90, 218,646.45 and 86,861.10

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Solution

The fourth proportional to 146,055.90, 218,646.45 and 86,861.10 is: 130,031.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,055.90 : 218,646.45 = 86,861.10 : x
  2. Step 2: Convert to fraction form
    146,055.90/218,646.45 = 86,861.10/x
  3. Step 3: Cross multiply
    146,055.90x = 218,646.45 × 86,861.10
  4. Step 4: Simplify right side
    146,055.90x = 18,991,871,158.10
  5. Step 5: Solve for x
    x = 18,991,871,158.10/146,055.90
  6. Step 6: Final answer
    x = 130,031.52

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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.