Home / 103,240.30-142,482.36-57,930.52

Finding the Fourth Proportional to 103,240.30, 142,482.36 and 57,930.52

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Solution

The fourth proportional to 103,240.30, 142,482.36 and 57,930.52 is: 79,950.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,240.30 : 142,482.36 = 57,930.52 : x
  2. Step 2: Convert to fraction form
    103,240.30/142,482.36 = 57,930.52/x
  3. Step 3: Cross multiply
    103,240.30x = 142,482.36 × 57,930.52
  4. Step 4: Simplify right side
    103,240.30x = 8,254,077,205.63
  5. Step 5: Solve for x
    x = 8,254,077,205.63/103,240.30
  6. Step 6: Final answer
    x = 79,950.15

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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.