Home / 139,930.02-209,856.53-38,703.82

Finding the Fourth Proportional to 139,930.02, 209,856.53 and 38,703.82

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Solution

The fourth proportional to 139,930.02, 209,856.53 and 38,703.82 is: 58,045.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,930.02 : 209,856.53 = 38,703.82 : x
  2. Step 2: Convert to fraction form
    139,930.02/209,856.53 = 38,703.82/x
  3. Step 3: Cross multiply
    139,930.02x = 209,856.53 × 38,703.82
  4. Step 4: Simplify right side
    139,930.02x = 8,122,248,935.06
  5. Step 5: Solve for x
    x = 8,122,248,935.06/139,930.02
  6. Step 6: Final answer
    x = 58,045.08

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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.