Home / 145,839.36-218,814.24-57,156.48

Finding the Fourth Proportional to 145,839.36, 218,814.24 and 57,156.48

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Solution

The fourth proportional to 145,839.36, 218,814.24 and 57,156.48 is: 85,756.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,839.36 : 218,814.24 = 57,156.48 : x
  2. Step 2: Convert to fraction form
    145,839.36/218,814.24 = 57,156.48/x
  3. Step 3: Cross multiply
    145,839.36x = 218,814.24 × 57,156.48
  4. Step 4: Simplify right side
    145,839.36x = 12,506,651,732.28
  5. Step 5: Solve for x
    x = 12,506,651,732.28/145,839.36
  6. Step 6: Final answer
    x = 85,756.35

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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.