Home / 98,575.39-147,869.24-66,971.87

Finding the Fourth Proportional to 98,575.39, 147,869.24 and 66,971.87

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Solution

The fourth proportional to 98,575.39, 147,869.24 and 66,971.87 is: 100,461.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,575.39 : 147,869.24 = 66,971.87 : x
  2. Step 2: Convert to fraction form
    98,575.39/147,869.24 = 66,971.87/x
  3. Step 3: Cross multiply
    98,575.39x = 147,869.24 × 66,971.87
  4. Step 4: Simplify right side
    98,575.39x = 9,903,079,602.82
  5. Step 5: Solve for x
    x = 9,903,079,602.82/98,575.39
  6. Step 6: Final answer
    x = 100,461.99

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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.