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Finding the Fourth Proportional to 145,671, 218,506.62 and 83,297.76

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Solution

The fourth proportional to 145,671, 218,506.62 and 83,297.76 is: 124,946.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,671 : 218,506.62 = 83,297.76 : x
  2. Step 2: Convert to fraction form
    145,671/218,506.62 = 83,297.76/x
  3. Step 3: Cross multiply
    145,671x = 218,506.62 × 83,297.76
  4. Step 4: Simplify right side
    145,671x = 18,201,111,991.17
  5. Step 5: Solve for x
    x = 18,201,111,991.17/145,671
  6. Step 6: Final answer
    x = 124,946.71

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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.