Home / 103,521.24-142,857.95-57,580.56

Finding the Fourth Proportional to 103,521.24, 142,857.95 and 57,580.56

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Solution

The fourth proportional to 103,521.24, 142,857.95 and 57,580.56 is: 79,460.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,521.24 : 142,857.95 = 57,580.56 : x
  2. Step 2: Convert to fraction form
    103,521.24/142,857.95 = 57,580.56/x
  3. Step 3: Cross multiply
    103,521.24x = 142,857.95 × 57,580.56
  4. Step 4: Simplify right side
    103,521.24x = 8,225,840,473.55
  5. Step 5: Solve for x
    x = 8,225,840,473.55/103,521.24
  6. Step 6: Final answer
    x = 79,460.41

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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.