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Finding the Fourth Proportional to 97,274.99, 144,945.51 and 86,663.49

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Solution

The fourth proportional to 97,274.99, 144,945.51 and 86,663.49 is: 129,133.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,274.99 : 144,945.51 = 86,663.49 : x
  2. Step 2: Convert to fraction form
    97,274.99/144,945.51 = 86,663.49/x
  3. Step 3: Cross multiply
    97,274.99x = 144,945.51 × 86,663.49
  4. Step 4: Simplify right side
    97,274.99x = 12,561,482,887.90
  5. Step 5: Solve for x
    x = 12,561,482,887.90/97,274.99
  6. Step 6: Final answer
    x = 129,133.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.