Home / 291,721.84-437,582.72-70,105.84

Finding the Fourth Proportional to 291,721.84, 437,582.72 and 70,105.84

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Solution

The fourth proportional to 291,721.84, 437,582.72 and 70,105.84 is: 105,158.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,721.84 : 437,582.72 = 70,105.84 : x
  2. Step 2: Convert to fraction form
    291,721.84/437,582.72 = 70,105.84/x
  3. Step 3: Cross multiply
    291,721.84x = 437,582.72 × 70,105.84
  4. Step 4: Simplify right side
    291,721.84x = 30,677,104,155.08
  5. Step 5: Solve for x
    x = 30,677,104,155.08/291,721.84
  6. Step 6: Final answer
    x = 105,158.75

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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.