Home / 145,161.46-217,686.21-56,403.28

Finding the Fourth Proportional to 145,161.46, 217,686.21 and 56,403.28

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Solution

The fourth proportional to 145,161.46, 217,686.21 and 56,403.28 is: 84,583.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,161.46 : 217,686.21 = 56,403.28 : x
  2. Step 2: Convert to fraction form
    145,161.46/217,686.21 = 56,403.28/x
  3. Step 3: Cross multiply
    145,161.46x = 217,686.21 × 56,403.28
  4. Step 4: Simplify right side
    145,161.46x = 12,278,216,254.77
  5. Step 5: Solve for x
    x = 12,278,216,254.77/145,161.46
  6. Step 6: Final answer
    x = 84,583.17

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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.