Home / 145,378.31-218,025.32-56,612.03

Finding the Fourth Proportional to 145,378.31, 218,025.32 and 56,612.03

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Solution

The fourth proportional to 145,378.31, 218,025.32 and 56,612.03 is: 84,901.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,378.31 : 218,025.32 = 56,612.03 : x
  2. Step 2: Convert to fraction form
    145,378.31/218,025.32 = 56,612.03/x
  3. Step 3: Cross multiply
    145,378.31x = 218,025.32 × 56,612.03
  4. Step 4: Simplify right side
    145,378.31x = 12,342,854,583.41
  5. Step 5: Solve for x
    x = 12,342,854,583.41/145,378.31
  6. Step 6: Final answer
    x = 84,901.63

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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.