Home / 103,257.56-142,483.77-57,926.13

Finding the Fourth Proportional to 103,257.56, 142,483.77 and 57,926.13

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Solution

The fourth proportional to 103,257.56, 142,483.77 and 57,926.13 is: 79,931.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,257.56 : 142,483.77 = 57,926.13 : x
  2. Step 2: Convert to fraction form
    103,257.56/142,483.77 = 57,926.13/x
  3. Step 3: Cross multiply
    103,257.56x = 142,483.77 × 57,926.13
  4. Step 4: Simplify right side
    103,257.56x = 8,253,533,383.91
  5. Step 5: Solve for x
    x = 8,253,533,383.91/103,257.56
  6. Step 6: Final answer
    x = 79,931.52

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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.