Home / 145,769.30-201,092.90-85,302.87

Finding the Fourth Proportional to 145,769.30, 201,092.90 and 85,302.87

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Solution

The fourth proportional to 145,769.30, 201,092.90 and 85,302.87 is: 117,677.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,769.30 : 201,092.90 = 85,302.87 : x
  2. Step 2: Convert to fraction form
    145,769.30/201,092.90 = 85,302.87/x
  3. Step 3: Cross multiply
    145,769.30x = 201,092.90 × 85,302.87
  4. Step 4: Simplify right side
    145,769.30x = 17,153,801,080.11
  5. Step 5: Solve for x
    x = 17,153,801,080.11/145,769.30
  6. Step 6: Final answer
    x = 117,677.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.