Home / 145,663.32-218,497.89-45,821.40

Finding the Fourth Proportional to 145,663.32, 218,497.89 and 45,821.40

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Solution

The fourth proportional to 145,663.32, 218,497.89 and 45,821.40 is: 68,733.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,663.32 : 218,497.89 = 45,821.40 : x
  2. Step 2: Convert to fraction form
    145,663.32/218,497.89 = 45,821.40/x
  3. Step 3: Cross multiply
    145,663.32x = 218,497.89 × 45,821.40
  4. Step 4: Simplify right side
    145,663.32x = 10,011,879,216.85
  5. Step 5: Solve for x
    x = 10,011,879,216.85/145,663.32
  6. Step 6: Final answer
    x = 68,733.02

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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.