Home / 153,890.84-212,363.78-96,561.07

Finding the Fourth Proportional to 153,890.84, 212,363.78 and 96,561.07

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Solution

The fourth proportional to 153,890.84, 212,363.78 and 96,561.07 is: 133,250.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,890.84 : 212,363.78 = 96,561.07 : x
  2. Step 2: Convert to fraction form
    153,890.84/212,363.78 = 96,561.07/x
  3. Step 3: Cross multiply
    153,890.84x = 212,363.78 × 96,561.07
  4. Step 4: Simplify right side
    153,890.84x = 20,506,072,812.33
  5. Step 5: Solve for x
    x = 20,506,072,812.33/153,890.84
  6. Step 6: Final answer
    x = 133,250.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.