Home / 144,913.05-217,369.58-128,583.45

Finding the Fourth Proportional to 144,913.05, 217,369.58 and 128,583.45

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Solution

The fourth proportional to 144,913.05, 217,369.58 and 128,583.45 is: 192,875.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,913.05 : 217,369.58 = 128,583.45 : x
  2. Step 2: Convert to fraction form
    144,913.05/217,369.58 = 128,583.45/x
  3. Step 3: Cross multiply
    144,913.05x = 217,369.58 × 128,583.45
  4. Step 4: Simplify right side
    144,913.05x = 27,950,129,878.53
  5. Step 5: Solve for x
    x = 27,950,129,878.53/144,913.05
  6. Step 6: Final answer
    x = 192,875.18

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1.5x scale

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.