Home / 145,580.40-218,240.68-56,813.28

Finding the Fourth Proportional to 145,580.40, 218,240.68 and 56,813.28

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Solution

The fourth proportional to 145,580.40, 218,240.68 and 56,813.28 is: 85,169.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,580.40 : 218,240.68 = 56,813.28 : x
  2. Step 2: Convert to fraction form
    145,580.40/218,240.68 = 56,813.28/x
  3. Step 3: Cross multiply
    145,580.40x = 218,240.68 × 56,813.28
  4. Step 4: Simplify right side
    145,580.40x = 12,398,968,860.23
  5. Step 5: Solve for x
    x = 12,398,968,860.23/145,580.40
  6. Step 6: Final answer
    x = 85,169.22

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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.