Home / 145,130.68-217,640.10-56,372.50

Finding the Fourth Proportional to 145,130.68, 217,640.10 and 56,372.50

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Solution

The fourth proportional to 145,130.68, 217,640.10 and 56,372.50 is: 84,537.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,130.68 : 217,640.10 = 56,372.50 : x
  2. Step 2: Convert to fraction form
    145,130.68/217,640.10 = 56,372.50/x
  3. Step 3: Cross multiply
    145,130.68x = 217,640.10 × 56,372.50
  4. Step 4: Simplify right side
    145,130.68x = 12,268,916,537.25
  5. Step 5: Solve for x
    x = 12,268,916,537.25/145,130.68
  6. Step 6: Final answer
    x = 84,537.03

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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.