Home / 103,561.10-142,912.95-58,239.06

Finding the Fourth Proportional to 103,561.10, 142,912.95 and 58,239.06

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Solution

The fourth proportional to 103,561.10, 142,912.95 and 58,239.06 is: 80,369.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,561.10 : 142,912.95 = 58,239.06 : x
  2. Step 2: Convert to fraction form
    103,561.10/142,912.95 = 58,239.06/x
  3. Step 3: Cross multiply
    103,561.10x = 142,912.95 × 58,239.06
  4. Step 4: Simplify right side
    103,561.10x = 8,323,116,405.75
  5. Step 5: Solve for x
    x = 8,323,116,405.75/103,561.10
  6. Step 6: Final answer
    x = 80,369.14

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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.