Home / 98,820.26-148,124.07-42,686.78

Finding the Fourth Proportional to 98,820.26, 148,124.07 and 42,686.78

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Solution

The fourth proportional to 98,820.26, 148,124.07 and 42,686.78 is: 63,984.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,820.26 : 148,124.07 = 42,686.78 : x
  2. Step 2: Convert to fraction form
    98,820.26/148,124.07 = 42,686.78/x
  3. Step 3: Cross multiply
    98,820.26x = 148,124.07 × 42,686.78
  4. Step 4: Simplify right side
    98,820.26x = 6,322,939,588.79
  5. Step 5: Solve for x
    x = 6,322,939,588.79/98,820.26
  6. Step 6: Final answer
    x = 63,984.24

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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.