Home / 145,763.64-218,709-51,061.86

Finding the Fourth Proportional to 145,763.64, 218,709 and 51,061.86

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Solution

The fourth proportional to 145,763.64, 218,709 and 51,061.86 is: 76,615.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,763.64 : 218,709 = 51,061.86 : x
  2. Step 2: Convert to fraction form
    145,763.64/218,709 = 51,061.86/x
  3. Step 3: Cross multiply
    145,763.64x = 218,709 × 51,061.86
  4. Step 4: Simplify right side
    145,763.64x = 11,167,688,338.74
  5. Step 5: Solve for x
    x = 11,167,688,338.74/145,763.64
  6. Step 6: Final answer
    x = 76,615.05

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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.