Home / 145,401.30-218,012.65-56,551.28

Finding the Fourth Proportional to 145,401.30, 218,012.65 and 56,551.28

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Solution

The fourth proportional to 145,401.30, 218,012.65 and 56,551.28 is: 84,792.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,401.30 : 218,012.65 = 56,551.28 : x
  2. Step 2: Convert to fraction form
    145,401.30/218,012.65 = 56,551.28/x
  3. Step 3: Cross multiply
    145,401.30x = 218,012.65 × 56,551.28
  4. Step 4: Simplify right side
    145,401.30x = 12,328,893,182.25
  5. Step 5: Solve for x
    x = 12,328,893,182.25/145,401.30
  6. Step 6: Final answer
    x = 84,792.18

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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.