Home / 103,053.63-142,212.70-57,730.79

Finding the Fourth Proportional to 103,053.63, 142,212.70 and 57,730.79

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Solution

The fourth proportional to 103,053.63, 142,212.70 and 57,730.79 is: 79,667.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,053.63 : 142,212.70 = 57,730.79 : x
  2. Step 2: Convert to fraction form
    103,053.63/142,212.70 = 57,730.79/x
  3. Step 3: Cross multiply
    103,053.63x = 142,212.70 × 57,730.79
  4. Step 4: Simplify right side
    103,053.63x = 8,210,050,519.32
  5. Step 5: Solve for x
    x = 8,210,050,519.32/103,053.63
  6. Step 6: Final answer
    x = 79,667.75

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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.