Home / 139,125.04-208,695.63-39,276.87

Finding the Fourth Proportional to 139,125.04, 208,695.63 and 39,276.87

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Solution

The fourth proportional to 139,125.04, 208,695.63 and 39,276.87 is: 58,917.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,125.04 : 208,695.63 = 39,276.87 : x
  2. Step 2: Convert to fraction form
    139,125.04/208,695.63 = 39,276.87/x
  3. Step 3: Cross multiply
    139,125.04x = 208,695.63 × 39,276.87
  4. Step 4: Simplify right side
    139,125.04x = 8,196,911,667.67
  5. Step 5: Solve for x
    x = 8,196,911,667.67/139,125.04
  6. Step 6: Final answer
    x = 58,917.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.