Home / 103,407.81-142,680.63-60,367.77

Finding the Fourth Proportional to 103,407.81, 142,680.63 and 60,367.77

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Solution

The fourth proportional to 103,407.81, 142,680.63 and 60,367.77 is: 83,294.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,407.81 : 142,680.63 = 60,367.77 : x
  2. Step 2: Convert to fraction form
    103,407.81/142,680.63 = 60,367.77/x
  3. Step 3: Cross multiply
    103,407.81x = 142,680.63 × 60,367.77
  4. Step 4: Simplify right side
    103,407.81x = 8,613,311,455.30
  5. Step 5: Solve for x
    x = 8,613,311,455.30/103,407.81
  6. Step 6: Final answer
    x = 83,294.59

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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.