Home / 98,932.79-148,448.39-78,962.75

Finding the Fourth Proportional to 98,932.79, 148,448.39 and 78,962.75

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Solution

The fourth proportional to 98,932.79, 148,448.39 and 78,962.75 is: 118,483.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,932.79 : 148,448.39 = 78,962.75 : x
  2. Step 2: Convert to fraction form
    98,932.79/148,448.39 = 78,962.75/x
  3. Step 3: Cross multiply
    98,932.79x = 148,448.39 × 78,962.75
  4. Step 4: Simplify right side
    98,932.79x = 11,721,891,970.42
  5. Step 5: Solve for x
    x = 11,721,891,970.42/98,932.79
  6. Step 6: Final answer
    x = 118,483.39

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1.5x scale

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.