Home / 145,161.71-217,657.82-56,311.40

Finding the Fourth Proportional to 145,161.71, 217,657.82 and 56,311.40

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Solution

The fourth proportional to 145,161.71, 217,657.82 and 56,311.40 is: 84,434.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,161.71 : 217,657.82 = 56,311.40 : x
  2. Step 2: Convert to fraction form
    145,161.71/217,657.82 = 56,311.40/x
  3. Step 3: Cross multiply
    145,161.71x = 217,657.82 × 56,311.40
  4. Step 4: Simplify right side
    145,161.71x = 12,256,615,617.64
  5. Step 5: Solve for x
    x = 12,256,615,617.64/145,161.71
  6. Step 6: Final answer
    x = 84,434.22

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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.