Home / 103,174.02-142,319.67-64,872.86

Finding the Fourth Proportional to 103,174.02, 142,319.67 and 64,872.86

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Solution

The fourth proportional to 103,174.02, 142,319.67 and 64,872.86 is: 89,486.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,174.02 : 142,319.67 = 64,872.86 : x
  2. Step 2: Convert to fraction form
    103,174.02/142,319.67 = 64,872.86/x
  3. Step 3: Cross multiply
    103,174.02x = 142,319.67 × 64,872.86
  4. Step 4: Simplify right side
    103,174.02x = 9,232,684,027.16
  5. Step 5: Solve for x
    x = 9,232,684,027.16/103,174.02
  6. Step 6: Final answer
    x = 89,486.52

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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.