Home / 99,119.32-136,751.16-56,647.60

Finding the Fourth Proportional to 99,119.32, 136,751.16 and 56,647.60

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Solution

The fourth proportional to 99,119.32, 136,751.16 and 56,647.60 is: 78,154.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,119.32 : 136,751.16 = 56,647.60 : x
  2. Step 2: Convert to fraction form
    99,119.32/136,751.16 = 56,647.60/x
  3. Step 3: Cross multiply
    99,119.32x = 136,751.16 × 56,647.60
  4. Step 4: Simplify right side
    99,119.32x = 7,746,625,011.22
  5. Step 5: Solve for x
    x = 7,746,625,011.22/99,119.32
  6. Step 6: Final answer
    x = 78,154.54

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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.