Home / 145,417.37-218,128.79-45,575.35

Finding the Fourth Proportional to 145,417.37, 218,128.79 and 45,575.35

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Solution

The fourth proportional to 145,417.37, 218,128.79 and 45,575.35 is: 68,363.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,417.37 : 218,128.79 = 45,575.35 : x
  2. Step 2: Convert to fraction form
    145,417.37/218,128.79 = 45,575.35/x
  3. Step 3: Cross multiply
    145,417.37x = 218,128.79 × 45,575.35
  4. Step 4: Simplify right side
    145,417.37x = 9,941,296,616.74
  5. Step 5: Solve for x
    x = 9,941,296,616.74/145,417.37
  6. Step 6: Final answer
    x = 68,363.89

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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.