Home / 98,123.64-147,062.03-53,143.22

Finding the Fourth Proportional to 98,123.64, 147,062.03 and 53,143.22

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Solution

The fourth proportional to 98,123.64, 147,062.03 and 53,143.22 is: 79,647.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,123.64 : 147,062.03 = 53,143.22 : x
  2. Step 2: Convert to fraction form
    98,123.64/147,062.03 = 53,143.22/x
  3. Step 3: Cross multiply
    98,123.64x = 147,062.03 × 53,143.22
  4. Step 4: Simplify right side
    98,123.64x = 7,815,350,214.81
  5. Step 5: Solve for x
    x = 7,815,350,214.81/98,123.64
  6. Step 6: Final answer
    x = 79,647.99

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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.