Home / 139,973.81-193,166.87-76,312.04

Finding the Fourth Proportional to 139,973.81, 193,166.87 and 76,312.04

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Solution

The fourth proportional to 139,973.81, 193,166.87 and 76,312.04 is: 105,312.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,973.81 : 193,166.87 = 76,312.04 : x
  2. Step 2: Convert to fraction form
    139,973.81/193,166.87 = 76,312.04/x
  3. Step 3: Cross multiply
    139,973.81x = 193,166.87 × 76,312.04
  4. Step 4: Simplify right side
    139,973.81x = 14,740,956,562.72
  5. Step 5: Solve for x
    x = 14,740,956,562.72/139,973.81
  6. Step 6: Final answer
    x = 105,312.25

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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.