Home / 98,775.35-148,196.28-31,318.40

Finding the Fourth Proportional to 98,775.35, 148,196.28 and 31,318.40

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Solution

The fourth proportional to 98,775.35, 148,196.28 and 31,318.40 is: 46,988.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,775.35 : 148,196.28 = 31,318.40 : x
  2. Step 2: Convert to fraction form
    98,775.35/148,196.28 = 31,318.40/x
  3. Step 3: Cross multiply
    98,775.35x = 148,196.28 × 31,318.40
  4. Step 4: Simplify right side
    98,775.35x = 4,641,270,029.88
  5. Step 5: Solve for x
    x = 4,641,270,029.88/98,775.35
  6. Step 6: Final answer
    x = 46,988.14

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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.