Home / 103,217.02-142,441.63-58,505.02

Finding the Fourth Proportional to 103,217.02, 142,441.63 and 58,505.02

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Solution

The fourth proportional to 103,217.02, 142,441.63 and 58,505.02 is: 80,738.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,217.02 : 142,441.63 = 58,505.02 : x
  2. Step 2: Convert to fraction form
    103,217.02/142,441.63 = 58,505.02/x
  3. Step 3: Cross multiply
    103,217.02x = 142,441.63 × 58,505.02
  4. Step 4: Simplify right side
    103,217.02x = 8,333,550,411.98
  5. Step 5: Solve for x
    x = 8,333,550,411.98/103,217.02
  6. Step 6: Final answer
    x = 80,738.14

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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.