Home / 103,125.17-142,311.41-57,803.07

Finding the Fourth Proportional to 103,125.17, 142,311.41 and 57,803.07

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Solution

The fourth proportional to 103,125.17, 142,311.41 and 57,803.07 is: 79,767.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,125.17 : 142,311.41 = 57,803.07 : x
  2. Step 2: Convert to fraction form
    103,125.17/142,311.41 = 57,803.07/x
  3. Step 3: Cross multiply
    103,125.17x = 142,311.41 × 57,803.07
  4. Step 4: Simplify right side
    103,125.17x = 8,226,036,105.01
  5. Step 5: Solve for x
    x = 8,226,036,105.01/103,125.17
  6. Step 6: Final answer
    x = 79,767.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.