Home / 145,899.94-218,869.06-57,141.92

Finding the Fourth Proportional to 145,899.94, 218,869.06 and 57,141.92

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Solution

The fourth proportional to 145,899.94, 218,869.06 and 57,141.92 is: 85,720.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,899.94 : 218,869.06 = 57,141.92 : x
  2. Step 2: Convert to fraction form
    145,899.94/218,869.06 = 57,141.92/x
  3. Step 3: Cross multiply
    145,899.94x = 218,869.06 × 57,141.92
  4. Step 4: Simplify right side
    145,899.94x = 12,506,598,317.00
  5. Step 5: Solve for x
    x = 12,506,598,317.00/145,899.94
  6. Step 6: Final answer
    x = 85,720.38

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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.