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Finding the Fourth Proportional to 101,482.08, 140,041.81 and 56,161.97

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Solution

The fourth proportional to 101,482.08, 140,041.81 and 56,161.97 is: 77,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,482.08 : 140,041.81 = 56,161.97 : x
  2. Step 2: Convert to fraction form
    101,482.08/140,041.81 = 56,161.97/x
  3. Step 3: Cross multiply
    101,482.08x = 140,041.81 × 56,161.97
  4. Step 4: Simplify right side
    101,482.08x = 7,865,023,931.97
  5. Step 5: Solve for x
    x = 7,865,023,931.97/101,482.08
  6. Step 6: Final answer
    x = 77,501.60

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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.