Home / 103,623.47-155,231.81-53,736.18

Finding the Fourth Proportional to 103,623.47, 155,231.81 and 53,736.18

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Solution

The fourth proportional to 103,623.47, 155,231.81 and 53,736.18 is: 80,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.47 : 155,231.81 = 53,736.18 : x
  2. Step 2: Convert to fraction form
    103,623.47/155,231.81 = 53,736.18/x
  3. Step 3: Cross multiply
    103,623.47x = 155,231.81 × 53,736.18
  4. Step 4: Simplify right side
    103,623.47x = 8,341,564,483.89
  5. Step 5: Solve for x
    x = 8,341,564,483.89/103,623.47
  6. Step 6: Final answer
    x = 80,498.80

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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.