Home / 139,985.24-210,064.95-56,879.24

Finding the Fourth Proportional to 139,985.24, 210,064.95 and 56,879.24

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Solution

The fourth proportional to 139,985.24, 210,064.95 and 56,879.24 is: 85,354.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,985.24 : 210,064.95 = 56,879.24 : x
  2. Step 2: Convert to fraction form
    139,985.24/210,064.95 = 56,879.24/x
  3. Step 3: Cross multiply
    139,985.24x = 210,064.95 × 56,879.24
  4. Step 4: Simplify right side
    139,985.24x = 11,948,333,656.31
  5. Step 5: Solve for x
    x = 11,948,333,656.31/139,985.24
  6. Step 6: Final answer
    x = 85,354.24

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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.