Home / 103,042.35-154,335.18-79,174.23

Finding the Fourth Proportional to 103,042.35, 154,335.18 and 79,174.23

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Solution

The fourth proportional to 103,042.35, 154,335.18 and 79,174.23 is: 118,585.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,042.35 : 154,335.18 = 79,174.23 : x
  2. Step 2: Convert to fraction form
    103,042.35/154,335.18 = 79,174.23/x
  3. Step 3: Cross multiply
    103,042.35x = 154,335.18 × 79,174.23
  4. Step 4: Simplify right side
    103,042.35x = 12,219,369,038.41
  5. Step 5: Solve for x
    x = 12,219,369,038.41/103,042.35
  6. Step 6: Final answer
    x = 118,585.89

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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.