Home / 98,726.40-148,124.16-28,609.92

Finding the Fourth Proportional to 98,726.40, 148,124.16 and 28,609.92

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Solution

The fourth proportional to 98,726.40, 148,124.16 and 28,609.92 is: 42,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,726.40 : 148,124.16 = 28,609.92 : x
  2. Step 2: Convert to fraction form
    98,726.40/148,124.16 = 28,609.92/x
  3. Step 3: Cross multiply
    98,726.40x = 148,124.16 × 28,609.92
  4. Step 4: Simplify right side
    98,726.40x = 4,237,820,367.67
  5. Step 5: Solve for x
    x = 4,237,820,367.67/98,726.40
  6. Step 6: Final answer
    x = 42,924.90

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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.