Home / 145,140.19-217,654.36-56,382.01

Finding the Fourth Proportional to 145,140.19, 217,654.36 and 56,382.01

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Solution

The fourth proportional to 145,140.19, 217,654.36 and 56,382.01 is: 84,551.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,140.19 : 217,654.36 = 56,382.01 : x
  2. Step 2: Convert to fraction form
    145,140.19/217,654.36 = 56,382.01/x
  3. Step 3: Cross multiply
    145,140.19x = 217,654.36 × 56,382.01
  4. Step 4: Simplify right side
    145,140.19x = 12,271,789,616.97
  5. Step 5: Solve for x
    x = 12,271,789,616.97/145,140.19
  6. Step 6: Final answer
    x = 84,551.29

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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.