Home / 103,068.72-142,232.96-57,746.24

Finding the Fourth Proportional to 103,068.72, 142,232.96 and 57,746.24

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Solution

The fourth proportional to 103,068.72, 142,232.96 and 57,746.24 is: 79,688.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,068.72 : 142,232.96 = 57,746.24 : x
  2. Step 2: Convert to fraction form
    103,068.72/142,232.96 = 57,746.24/x
  3. Step 3: Cross multiply
    103,068.72x = 142,232.96 × 57,746.24
  4. Step 4: Simplify right side
    103,068.72x = 8,213,418,644.07
  5. Step 5: Solve for x
    x = 8,213,418,644.07/103,068.72
  6. Step 6: Final answer
    x = 79,688.76

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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.