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Finding the Fourth Proportional to 72,114.48, 100,027.14 and 70,196.40

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Solution

The fourth proportional to 72,114.48, 100,027.14 and 70,196.40 is: 97,366.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,114.48 : 100,027.14 = 70,196.40 : x
  2. Step 2: Convert to fraction form
    72,114.48/100,027.14 = 70,196.40/x
  3. Step 3: Cross multiply
    72,114.48x = 100,027.14 × 70,196.40
  4. Step 4: Simplify right side
    72,114.48x = 7,021,545,130.30
  5. Step 5: Solve for x
    x = 7,021,545,130.30/72,114.48
  6. Step 6: Final answer
    x = 97,366.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.