Home / 139,125.31-208,516.95-64,141.38

Finding the Fourth Proportional to 139,125.31, 208,516.95 and 64,141.38

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Solution

The fourth proportional to 139,125.31, 208,516.95 and 64,141.38 is: 96,133.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,125.31 : 208,516.95 = 64,141.38 : x
  2. Step 2: Convert to fraction form
    139,125.31/208,516.95 = 64,141.38/x
  3. Step 3: Cross multiply
    139,125.31x = 208,516.95 × 64,141.38
  4. Step 4: Simplify right side
    139,125.31x = 13,374,564,926.39
  5. Step 5: Solve for x
    x = 13,374,564,926.39/139,125.31
  6. Step 6: Final answer
    x = 96,133.23

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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.