Home / 145,477.28-218,086.53-56,792.91

Finding the Fourth Proportional to 145,477.28, 218,086.53 and 56,792.91

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Solution

The fourth proportional to 145,477.28, 218,086.53 and 56,792.91 is: 85,138.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,477.28 : 218,086.53 = 56,792.91 : x
  2. Step 2: Convert to fraction form
    145,477.28/218,086.53 = 56,792.91/x
  3. Step 3: Cross multiply
    145,477.28x = 218,086.53 × 56,792.91
  4. Step 4: Simplify right side
    145,477.28x = 12,385,769,275.35
  5. Step 5: Solve for x
    x = 12,385,769,275.35/145,477.28
  6. Step 6: Final answer
    x = 85,138.86

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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.