Home / 97,002.70-145,504.05-90,004.30

Finding the Fourth Proportional to 97,002.70, 145,504.05 and 90,004.30

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Solution

The fourth proportional to 97,002.70, 145,504.05 and 90,004.30 is: 135,006.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,002.70 : 145,504.05 = 90,004.30 : x
  2. Step 2: Convert to fraction form
    97,002.70/145,504.05 = 90,004.30/x
  3. Step 3: Cross multiply
    97,002.70x = 145,504.05 × 90,004.30
  4. Step 4: Simplify right side
    97,002.70x = 13,095,990,167.42
  5. Step 5: Solve for x
    x = 13,095,990,167.42/97,002.70
  6. Step 6: Final answer
    x = 135,006.45

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1.5x scale

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.