Home / 99,107.03-136,767.86-56,666.47

Finding the Fourth Proportional to 99,107.03, 136,767.86 and 56,666.47

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Solution

The fourth proportional to 99,107.03, 136,767.86 and 56,666.47 is: 78,199.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,107.03 : 136,767.86 = 56,666.47 : x
  2. Step 2: Convert to fraction form
    99,107.03/136,767.86 = 56,666.47/x
  3. Step 3: Cross multiply
    99,107.03x = 136,767.86 × 56,666.47
  4. Step 4: Simplify right side
    99,107.03x = 7,750,151,835.65
  5. Step 5: Solve for x
    x = 7,750,151,835.65/99,107.03
  6. Step 6: Final answer
    x = 78,199.82

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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.