Home / 99,073.26-136,721.07-56,632.70

Finding the Fourth Proportional to 99,073.26, 136,721.07 and 56,632.70

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Solution

The fourth proportional to 99,073.26, 136,721.07 and 56,632.70 is: 78,153.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,073.26 : 136,721.07 = 56,632.70 : x
  2. Step 2: Convert to fraction form
    99,073.26/136,721.07 = 56,632.70/x
  3. Step 3: Cross multiply
    99,073.26x = 136,721.07 × 56,632.70
  4. Step 4: Simplify right side
    99,073.26x = 7,742,883,340.99
  5. Step 5: Solve for x
    x = 7,742,883,340.99/99,073.26
  6. Step 6: Final answer
    x = 78,153.11

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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.