Home / 145,159.46-217,683.21-56,401.28

Finding the Fourth Proportional to 145,159.46, 217,683.21 and 56,401.28

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Solution

The fourth proportional to 145,159.46, 217,683.21 and 56,401.28 is: 84,580.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,159.46 : 217,683.21 = 56,401.28 : x
  2. Step 2: Convert to fraction form
    145,159.46/217,683.21 = 56,401.28/x
  3. Step 3: Cross multiply
    145,159.46x = 217,683.21 × 56,401.28
  4. Step 4: Simplify right side
    145,159.46x = 12,277,611,678.51
  5. Step 5: Solve for x
    x = 12,277,611,678.51/145,159.46
  6. Step 6: Final answer
    x = 84,580.17

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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.