Home / 77,698.16-116,459.04-68,320.04

Finding the Fourth Proportional to 77,698.16, 116,459.04 and 68,320.04

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Solution

The fourth proportional to 77,698.16, 116,459.04 and 68,320.04 is: 102,402.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,698.16 : 116,459.04 = 68,320.04 : x
  2. Step 2: Convert to fraction form
    77,698.16/116,459.04 = 68,320.04/x
  3. Step 3: Cross multiply
    77,698.16x = 116,459.04 × 68,320.04
  4. Step 4: Simplify right side
    77,698.16x = 7,956,486,271.16
  5. Step 5: Solve for x
    x = 7,956,486,271.16/77,698.16
  6. Step 6: Final answer
    x = 102,402.51

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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.